I don't know. None of the X-Men because as much as I enjoy adaptations from the comics (loved the cartoons and movies), the comics version is such a clusterf*** with a million different continuities that give me hemorrhages trying to keep track of because apparently Uncanny X-Men is entirely different from Astonishing X-Men.
In fact, I'm not crazy about being a lot of the Marvel heroes. Though if I had to choose a Marvel hero, I'd want to be Captain America. In addition to his powers, he's basically the most morally upstanding guy in the Marvel-verse, the hero that all the other heroes aspire to emulate. Yet at the same time, the latest Captain America movie proved that you can still tell a damn good story even with a hero who is basically a good, morally upstanding guy.
As for the DC universe, I don't want to be Batman or any member of the Bat-family. If we're talking about animated continuity and not comic book, well, I can really relate to Razer from Green Lantern: the Animated Series.
auses to wipe away tear: Was so sad that Cartoon Network canceled it after one season, despite it being totally awesome, but the ending wasn't too bad. It resolved the main conflict, while at the same time, leaving the door open for future stories, so I'm not entirely bitter. Few things I hate more than a show being canceled on a cliffhanger ending. :glares at My Name is Earl and Alphas: