Mine is Spiderman. He has to live the day to day life of being a superhero and a teenager at the same time. Plus he can kick a** and take names with simplicity.
Spider Man (he's a teenage genius, and one of the first teens who wasn't a sidekick, and love his personality)
Storm, she's an African goddess and a badass
Mystique, her power is amazing
Magneto, awesome power
And lately Peter Quill, I just loved Guardians of the Galaxy
Captain American is BORING Chris Evans >>> but the character of Captain America is whatever, his movies are the best Marvel has right now though, Winter Solider is the best Marvel Universe movie they've released so far (The movies since 2008).