I spent a lot of time playing that on DS, I think I may have used a Marvel Knights deck to kill off sentinel producing cards. Same goes for Spidey Villains. I'll have to boot it up sometime and see what my final decks looked like.
Hmmm.. Marvel Knights deck eh... yeah they have a number of plot twists and equipment cards to knock out stunned opponents. Like Quick kill and Punisher's War wagon. Haven't really tried using quick kill though.
By Spidey Villains, i assume your referring to a Sinister Syndicate deck. Sadistic Choice can also knock out stunned opponents. Other than that, i'm not sure what cards to use, to make them more effective.
Anyways, i'll be interested to see your final decks if you ever get to check them out. Thanks.