Why would Marvel want to to go with a different distributer? You really think that anyone else would have made more money off of it? What comic books nerds fail to realize is that it doesn't matter how faithful it is to the comic, because the studio knows that they will be going to see it anyway and get their money, even if they hate it. So again, do you really think that anyone else could have made X-films that attracted more blockbuster movie-goers? I doubt it. I think that they have been as successful as they ever could be.
PS. Don't take that as an insult. As a comic nerd myself I have learned to accept the fact that comic book movies are going to be made by people that seem to have virtually no knowledge of the source material, and I try to judge their cinematic merits on it's own level.