Please Matt, don't do this ever again. There's no problem with your Worst list but your Best list was just a mess. "Superman"? It was good for it's time but doesn't hold up over time. It may deserve an honorable mention but to have it top the list but the superior sequel doesn't make it disrespect and invalidates the whole thing.
The same argument works against "X-Men" with it's convoluted plot and unremarkable performances of half the cast.
And play by the rules you set. If it's a list of superhero films and not general comic book based movies, then you can't have "V For Vendetta". Why not "300"? Or "From Hell"?
Just an odd list that shouldn't be repeated.