6. Punisher
Don't get me wrong, the Punisher is a great character - a really gritty, dark anti-hero with a hell of a lot of substance - but after three fairly unsuccessful attempts at bringing him to the big screen already, I think it's fair to say he's had his chance. Dolph Lundgren (in 1989), Thomas Jane (in 2004) and Ray Stevenson (in 2009) have all failed to hit the heights of the Superman, Batman, Iron Man and Spider-Man movies with the character and, while I do believe it's possible to make a very successful movie with Frank Castle as the titular character, there are characters who haven't had a chance yet who should be brought to the big screen before a character who's already had three.