Here are the superhero films I would like to see:
Fantastic Four - My favorite comic stories of all time. SO much good stuff to draw on from this series. Someone needs to make a GOOD film of this some day. Dr. Doom could be the scariest movie villian of all time if done right. Aim for making Darth Vader look like a muppet, and they would be heading in the right direction.
Green Lantern - One of the few DC titles I actually liked. I was normally a Marvel whore growing up. This could be produced in a very weird, stylized, and almost mystical / supernatural way. If they try to do it as a simple "dude with green ring fights bad guys" story just like every other superhero story, it will be BORING. The strength of the Green Lantern series was in the stories that took place away from Earth.
Silver Surfer - I have no idea how they could or would produce a movie about an all silver guy, but there\'s no doubt that the public is very familiar with this character. I just don\'t know how they could cast it, and how the audience would even recognize the actor. UNLESS - it was done ALL CG???? Maybe this is a good one for Pixar.
Doctor Strange - I even loved the crappy TV movie that was released back in the 70s. Lots of cool trippy metaphysical themes that can be mined from this one. Few laymen know the character, but it would be cool for those who know.