which one should i upgrade

nona

which one should i upgrade

iron man inf.war 4star awakend rank 4-5
cap.amerika inf.war 4star awakend rank 4-5
void 5 star not awakend rank 2-3

Archdemon_

Depends on where you are in the game, as a rule of thumb, if you're Uncollected concentrate on 5*s - if you're not I'd do your CapIW

Vinvick

Void is good def & atk. IMIW is more of def. Cap is good too.