Who is the worst of the popular superheroes?

[pokoko]

Superman, by a mile. I dislike him in pretty much every regard. How is a superhero who should always win even remotely interesting or compelling? He's a remnant of a different time, a different way of thinking. He's supposed to be perfect, which I don't find engaging at all. He's like some kind of indestructible plastic.

Honestly, give me a character that has to overcome substantial obstacles, either external or internal, preferably both. I have so much more respect for those that win despite the odds or their own personal demons.