What makes Apocalypse such an interesting villain is that he doesn't care about the Human/Mutant problems the world faces. To Apocalypse its only the strongest who are fit to survive. Wether they be mutant or human. What's cool about the X-men is that they try to stop a war. But what if the war started? Or at least the first act of war was made.
Apocalypse may seem to far fetch of a villain to use in a movie,but is he really? He wasn't always robot looking. When he melded with alien tech and became...well robot looking. But what are the strikes he has against him?
1:He has alien technology. In the movie he doesn't have to wield alien tech. But it should be advanced. The work of Mister Sinister.
2:His long lifespan. Sebastian Shaw said in X-men FC that absorbing energy keeps him young. So can we really decipher how long he's been alive? Well no, in fact he says it so fast we don't even care that he said it. Apocalypse can control his molecules so its not far fetched that he's lived a long time.
3:He needs to be released. Again no. It seems to stupid and lame to put in a movie. He should just already be around.
4:Has 4 Horsemen. This idea I like. If they use some villains that could become part of Magneto's future Brotherhood I think it could work.
I can't think of anything else now. But you know what to do. Sound off in the usual place. Could apocalypse be a good villain for X-men FC 3?