Roster Advice

Zappa

Back again, my roster has progressed well, especially due to civil war. I now have 21 3* champs; of the top tier I'm only missing luke cage who I've had bad luck with.
Now have 2 cover maxed 4*s:
XFW 160
Fury 140
I have X23 sitting at 4-3-5 @ 166 with a green cover from champ daken incoming (he's level 180).
However I'm also about to hit the string of nick fury covers from shield resupply - starting day 400 tomorrow.
Last time I posed this question I was advised to continuing champing my 3*s. So do I just toss these 3 upcoming fury covers since the reward is a small amount of iso, hp, and one LT?
And if so, when I do cover max x23, should I max her since she's better than Fury? Or do I wait for a top 5 hero before shifting my scaling in pvp.
I am currently taking a break from pvp placement in order to start gathering some hp (down to about 1k), but I can easily hit 1k for any 4* covers I want. I can also complete a majority of the crash of the titans.
Thanks for taking the time to go over this, I am unsure if I should rush into 4* land or not.

Rest of my 4* roster progress:
4-3-5 x23 166
3-3-5 HB 166
3-3-4 ProfX 160
5-3-1 Cyclops 152
0-5-1 Iceman 152
5-1-5 Rulk 147 (Sentry sitting at 182 about to pop out another rulk green)
3-3-3 Thoress 147
5-5-0 XFDP 131
1-5-2 Ghost rider 131
1-1-5 Jean Grey 131
3-5-2 Ant Man 94
3-4-4 Carnage 86
1-2-5 Kingpin 74
2-4-1 Thing 74
4-1-3 Quake 70

BlackSheep101

I would max out Fury and take advantage of the incoming covers. Things are much easier with a champion 4*, particularly when they're boosted. Boosted Fury can down most targets with a single Demolition, and Avengers Assemble doesn't suck.

Then you can start saving for the next champ. X-23 may not come for a couple of weeks, as you still need 3 more Daken covers to get her green cover, and Daken doesn't show up in DDQ for 10 days.

No matter who you decide to level, I would save up until you can max them in one shot. That way, if you hit a hot streak and cover someone better in the meantime (HB and rulk are pretty close), you can just reallocate.

TxMoose

in the meantime if you get a 'big 5' (hb/rulk/jean/cyke/ice) covered before you max fury, trash the fury covers and level them. especially if its hb or cyke as you already have x23 covered for purple/green user. rulk and jean are better than x23 but in different ways.