I think we're all forgetting that there's has NEVER been a good xmen movie. They've just been some so bad other look good in comparison. Go down the list looking at the movies from a comic book fan and just a movie;
Xmen 1: CB movie, horrible. Movie, laughably bad
Xmen 2: CB movie, serviceable at best. Movie, meh
Xmen 3: CB movie, horrible. Movie, porn parody status
Wolverine origins: CB movie, horrible. Movie, wtf were they thinking?
Wolverine: CB movie, horrible. Movie, LOL
1st class: CB movie, serviceable at best. Movie, meh
Dofp: CB movie, hit and miss (mostly miss). Movie, meh
Apocalypse: CB movie, horrible. Movie, meh - LOL.
I'm a huge xmen fan and so is anyone in their late 20's now due to the cartoon and such. Why they continue to take a dump on the source material is beyond me. In some cases they actually make things more complicated changing things.
Xmen has become the F&F of the comic book movie world. They aren't good, entertaining enough, down right ridiculous even using the movies own logic, and they keep coming out with more.