Much Like the OP I like to use Dante Deadpool and Super Skrull, I'm pretty poor at fighting games, so With super Skrull I found that spamming Tenderiser works well. And launching, tenderiser and Inferno does a lot of damage and seems to do well against the AI. I like dante for his guitar assist and his hyper combo, he also has some pretty good moves as well. Deadpool i'm not very good at, and I use a lot of his speed to harass the enemy and I like his long range spam, however he is the one I keep changing out for other people, like Hsien-Ko(Spelling?) who seems to have a huge arial advantage.