So many to choose from but ultimately there are very few that make the short list.
Venom and Spiderman (Venom shoulda been in MVC3 DAMMIT!) Wolverine, Gambit, Rouge, and Magneto.
Spiderman's my ATF and he could be so much more. I mean there was a time when he donned the black suit he had stashed away. There was alot of epicness for me after that. Spiderman should've been an ambiguous character. Not all hero, not all villian. The Anti-Hero is cool and all, but still the Hero.
I like heroes who will let a bystander die in order to catch the villian. ;gun;