A hero all the way, but I'd only like to have a small scale power so that I can focus on saving kittens from tall trees and foiling the occasional bank robbery.

That way I can become famous and liked without having to become increasingly stressed about not being fast enough to catch every falling aeroplane in the world.

In short, I'd be a hero for entirely selfish reasons. But does that really matter as long as I'm doing the people around me a favour in the end? No it does not.