Which 3-star offers you the most utility?

abominatrix

Given Strange Sights, I'm adding to my list:
Adding Kamala and Loki to the list, since the only way I was able to beat Kacelius was with Patch/Kamala/Loki. Which is sad 

Dormammu

IM40 (Duh)

I didn't add Cyclops because (despite his yellow) I didn't view him as a support character. Cyclops is a damage manufacturing beast. 

AardvarkPepper

Other (Describe below!)

I use 3* Wolverine and will use 3* Daken.  They can start a match with almost no hit points and end up at max health.

Their power selection is pretty bad compared to others, but for grinding out, it's how I do.

mrb

Dr. Strange (Goons beware)

Thanos against weak goons and early nodes. Swap him out for Strange against enemies tough enough to survive Thanos's kill wave. I use IM40 less and less these days.

SkadenFrudee

Dr. Strange (Goons beware)

I don't use IM40 much at all since I champed a few 4*s. I never thought I'd let him go (IM40, KK, and strang3 were my goto team)   but C4rol, Bl4de, and Coulson have replaced him. 

broll

Dr. Strange (Goons beware)

1.  Dr. Strange
2.  IM40

Jaedenkaal

IM40 (Duh)

Dormammu said:

I didn't add Cyclops because (despite his yellow) I didn't view him as a support character. Cyclops is a damage manufacturing beast. 

From a 4* player perspective (which was in the scope of your poll), 3* cyclops' damage is unexciting, even boosted. His red generation is still pretty good.

That said, from a "yellow AP -> Red AP" conversion standpoint, I'd still pick IM40 every time.

Dormammu

IM40 (Duh)

I have used 3-star Cyclops as a red battery, but only when paired with Hulkbuster and I can't use IM40.

Jaedenkaal

IM40 (Duh)

Dormammu said:

I have used 3-star Cyclops as a red battery, but only when paired with Hulkbuster and I can't use IM40.

Exactly.