A 3* Character Ranking Guide for players in the 2*-3* transition - comments?

Making a guide for new players. Part of it is a 3* Character Ranking list.
Questions to forum:
1) This list is generally PvE oriented. Apart from hitting PvP at open for the easy rounds and perhaps doing a few additional matches for progression / score rewards, do players consider rewards in PvP to be better, per time spent and health packs gained, than PvE? Assuming limited budget and not buying health packs or buying a lot of covers in store.
2) This is a 3* ranking list. Any comments for a couple priority 4*s? I'm thinking Medusa, Carnage, Mister Fantastic, again assuming PvE gives better rewards per time spent, but if it works out that newer players can earn rewards faster in PvP, I'm all for comments.
3) Any comments re: characters that should be at a very different rank?
Thanks
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A: Essential to breaking into higher PvE SCL
B: Very useful, almost essential
C: Very good in common situations

E: Strong on their own but best with planned teammates
F: Not best on their own and *need* planned teammates
G: Best used only against particular enemies (or with *very* carefully planned teammates)
H: Best used only against particular enemies *and* with carefully planned teammates
I: Best used only in extremely rare situations
J: Used with 4* Rocket and Groot or *very* specific 3-character 3* teams.
A lower letter ranking does not mean a character is "bad", it just means circumstances need to be more specific for the character to be of best use. A player can very legitimately choose characters lower on the rank list to make other characters on their roster more viable. For example Blade is ranked E13, but generates Strike tiles that help 2* Daken and 2* Black Widow. 3* Blade is essential to making 3* Daken and Psylocke viable, as well as being a key character to exploit 3* Sam Wilson (Falcon) and She-Hulk's abilities.
Wolverine is ranked F21 but his green power can be followed by cheap-AP or multi-damage-step attacks or team damage effects for very high burst damage, or can be combined with Loki for high damage without much drawback once both 3* Wolverine green then 3* Loki black can be fired.
Even Gamora at J47 (last place) is uniquely good when used with 4* Rocket and Groot, and offers unique utility when paired with Blade and another character with team synergies.
A high letter ranking does not mean a character is "good", especially in the D ranks. For example Luke Cage is ranked D12, but in practice is often far less useful than E13 Blade. Luke Cage's Protect tile simply isn't needed much of the time. He is D-ranked because when one *does* need reliable early quick protection, there is no substitute in the 3* ranks for Luke Cage.
[h1]The List[/h1]
A1 Doctor Strange (Stephen Strange)
A2 Iron Man (Model 40) "IM40"
B3 Kamala Khan (Ms. Marvel) "KK"
B4 Captain America (Super Soldier)
C5 Scarlet Witch (Wanda Maximoff) "SWitch"
C6 Thanos (Modern)
C7 Deadpool (It's Me, Deadpool!)
C8 Hawkeye (Hawkguy)
C9 Iron Fist (Immortal Weapon) "IF"
D10 Black Widow (Grey Suit) "GSBW"
D11 The Hood (Classic)
D12 Luke Cage (Hero for Hire)
E13 Blade (Daywalker)
E14 Magneto (Classic)
E15 Mystique (Raven Darkholme)
E16 Cyclops (Uncanny X-Men)
E17 Doctor Doom (Classic)
E18 Thor (Modern)
E19 Black Panther (T'Challa)
E20 Storm (Mohawk)
F21 Wolverine (Patch)
F22 Daken (Classic)
F23 Human Torch (Classic)
F24 Sam Wilson (Falcon) "Sam", or "Falcon"
F25 Star-Lord (Peter Quill)
F26 Quicksilver (Pietro Maximoff)
F27 Ragnarok (Dark Avengers)
F28 Psylocke (Classic)
F29 Colossus (Classic)
F30 The Hulk (Indestructible)
F31 Vision (Android Avenger)
G32 Elektra (Assassin)
G33 Daredevil (Man Without Fear)
G34 Rocket & Groot (Most Wanted)
G35 Squirrel Girl (Unbeatable)
G36 Doctor Octopus (Otto Octavius)
H37 Loki (Dark Reign)
H38 She-Hulk (Modern) "SHulk"
H39 Captain Marvel (Modern)
H40 Gambit (Modern)
H41 Beast (Classic)
H42 Bullseye (Classic)
I43 Spider-Man (Classic)
I44 Angel (All New X-Men)
I45 The Punisher (Dark Reign)
I46 Sentry (Dark Avengers)
J47 Gamora (Guardians of the Galaxy)
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Comments
So for example, how do we rank Iron Fist and Kamala Khan against one another? Both are good feeders, one has a big AoE while the other has a big nuke, one is a burst healer while the other is a utility tile spammer... which is better? The answer is: neither. They're both top-tier characters.
And that's how I like to view characters: by tiers. There are 'top-tier' characters, 'mid-tier' characters, and 'low-tier' characters. So what makes a character top tier vs. low tier? Usually you have to start factoring in AP costs, Health, Damage comparisons, etc.
With that being said, you have some holes in your rankings. Like Colossus - he's a tank and a damaging nuker. You have him ranked 29th, smack dab in the middle. But he's a low-tier 3-star. If you need a tank, there are far better choices, and if you need someone to do damage, there are far better choices. Plus. his abilities are overly expensive. Mystique is another one you have too high - she's a low-tier 3-star. Black Widow is too high, she's a relic with overly expensive powers and everything she does can be done better and/or cheaper by someone else. Spider-Man is too low, he's a mid-tier 3-star with a lot of utility. Cyclops is too low, he's probably a top 5 3-star with the best damage output among his peers, plus he's a feeder/self-accelerator. The Hulk is too high, he's simply a broken character. As a PvE tank, Rocket & Groot are better than a dozen of the characters you have ranked above them.
But again, this is all subjective. One man's trash is another man's treasure, right? Which is why I would advise ranking characters in tiers rather than a subjective numerical order.
Cyclops joins up well with IF and SW. she generates purple, IF turns it to black, cyclops dished the damage - simple.
I quite like spidey with SW and bullseye. SW generates purple and spidey creates purple in the process. Bullseye trades the protects for damage.
These are are all three person teams so they’re not really suited to most PvPs but you could play them in PvE or in the shield simulator. R&G, Thor and Loki carried me a long way in the simulator back when I was in 3* land.
If your lettering system works for you then great. Personally i’m inclined to agree with @Dormammu about it being a bit complicated. For people like me (low attention span) high, medium and low is much easier to grasp.
Colossus is awful though. If a good defence was a thing in this game then maybe he would have a niche. It isn’t, so he doesn’t.
TOP TIER:
Doctor Strange (Stephen Strange) - low health, but he destroys with his yellow and blue, purple is too expensive
Iron Man (Model 40) "IM40" - Great battery for almost everybody, including 4*s, Red is Good, Blue too pricey
Kamala Khan (Ms. Marvel) "KK" - Green battery, self-accelerating, plus she can help you avoid health packs
Scarlet Witch (Wanda Maximoff) "SWitch" - Purple battery mostly, but her Purple AOE is good, Green is defense
Thanos (Modern) - Black passive is the king of speed, pair with Strange for PVE dominance, Green is difficult to use
Hawkeye (Hawkguy) - Blue & Purple AP battery with enemy specials, Purple is strong, Blue is Good & Self-Healing
Iron Fist (Immortal Weapon) "IF" - Passive damage + Black battery, Green power is bonus
The Hood (Classic) - Use for defense, AP Stealer, just match least common colors
Luke Cage (Hero for Hire) - Passive protection, pairs well with Fist, Hits hard in 2 colors
Magneto (Classic) - 3 Good powers, but his red is the best. Pair with Loki or Kamala.
Cyclops (Uncanny X-Men) - self-accelerating, hits hard in 2 colors
MID TIER:
Captain America (Super Soldier) - a little slow, but he can hit and protect to win the match alone.
Deadpool (It's Me, Deadpool!) - Red is cheap and powerful, Purple is a late game move, Black is almost useless
Black Widow (Grey Suit) "GSBW" - Purple and green are great AP generators and board shakers, but needs battery
Blade (Daywalker) - Red Strikes are unreliable, unless paired with Cyclops, Black is good, Purple is expensive
Doctor Doom (Classic) - Slow but powerful, especially that Purple attack.
Thor (Modern) - a little slow, even with the self-acceleration
Black Panther (T'Challa) - 3 Good powers, but not a consistent theme. I always hesitate to use his Black.
Storm (Mohawk) - 1 Good power, Black, but it kills.
Mystique (Raven Darkholme) - a little slow, Purple is the most useful, perhaps a part of a Purple, Blue, Black engine
Wolverine (Patch) - dangerous to use unless you can remove enemy strikes
Daken (Classic) - only good for quick hits, his Blue power works against himself
Human Torch (Classic) - a little slow, but can deal some decent damage
Sam Wilson (Falcon) "Sam", or "Falcon" - killer in the right situation, but still a niche character
Psylocke (Classic) - Red and Black are decent damage, but Blue is almost useless
Elektra (Assassin) - 3 Decent powers, but nothing amazing
Daredevil (Man Without Fear) - only Good in the right situation, Blue can stun lock, Red is useless without Cyclops
Loki (Dark Reign) - works best with Patch, but unreliable AP production
Captain Marvel (Modern) - only good if she's tanking heavy hits
Beast (Classic) - Blue is cheap but unpredictable, Green can be good
Bullseye (Classic) - expensive powers, but good in wave nodes
Spider-Man (Classic) - similar to Luke cage, but more defense and 1 nuke
BOTTOM TIER:
Star-Lord (Peter Quill)
Quicksilver (Pietro Maximoff) - good in Boss Battles
Ragnarok (Dark Avengers)
Colossus (Classic)
The Hulk (Indestructible)
Vision (Android Avenger)
Squirrel Girl (Unbeatable)
Rocket & Groot (Most Wanted) - only good for saving health packs, Green is weak, Blue is slow
Doctor Octopus (Otto Octavius) - generally bad, but good against enemy specials
She-Hulk (Modern) "SHulk" - Red is weak, Green is unreliable, Blue is dumb
Gambit (Modern) - almost good, needs help
Angel (All New X-Men)
The Punisher (Dark Reign) - weak by comparison only
Sentry (Dark Avengers) - strong but damages teammates
Gamora (Guardians of the Galaxy)
Cyclops is slow, you're not wrong about that, but he does best-in-tier nuke damage and that's nothing to dismiss. I mean, max-champed his black does up to 10K damage; that's 5-star territory. When in the 3-star tier I would put him with Switch and Iron Fist to accelerate his black pretty quickly. Cloak & Dagger, if available, will do it too (even if they are under-leveled). He accelerates himself matching red & yellow to get his Optic Blasts off with regularity. When boosted he becomes an absolute terror.
Thor is another character labeled as 'slow' but he also simply needs an accelerator. Put him with IM40 once. All it takes is for one Recharge to go off and the pain train begins. Thor is fed red and green (set both to 5). Use Thor's red to make more yellow for IM40, who converts it to more red and green. Thor will nuke your enemies' faces off with a constant barrage of red hammer slams and green AoE. Set IM40's blue to 5 and he'll occasionally join in on the fun. When boosted, Thor outperforms most 4-stars in health and damage.
A1 Doctor Strange (Stephen Strange) - PvE punishes active powers
A2 Iron Man (Model 40) "IM40" - accelerates AP, also has decent red
B3 Kamala Khan (Ms. Marvel) "KK" - temporary HP, board shakeup, team damage
C6 Thanos (Modern) - speed
C7 Deadpool (It's Me, Deadpool!) - Deadpool Whales
C8 Hawkeye (Hawkguy) - generates AP off enemy Specials, true regeneration
C9 Iron Fist (Immortal Weapon) "IF" - Attack tile for early damage, generates black, can store up AP and do a lot of damage in later rounds
D10 Black Widow (Grey Suit) "GSBW" - multiple powers with precision board control, good against some alliance bosses
D11 The Hood (Classic) - fragile but AP denial and black works with Captain America
D12 Luke Cage (Hero for Hire) - persistent Protect tile
E13 Blade (Daywalker) - generates Strike tiles that are key to making other characters useful, also can drain AP and create Attack tiles (though slowly)
E14 Magneto (Classic) - board shakeup and damage that doesn't destroy tiles so won't destroy friendly specials.
I prefer 3* Black Widow as a third there. Same green/Purple coverage, but she excels in board manipulation and both green and Purple can help remove troublesome bombs.