Wrong choice of mutants.

Why did they bring Jean, Scott , storm too soon when they have so many X-men characters to use. We have already seen their story in original X-men trilogy. They are still teenagers and you have time to bring them in future. They should have gone for Havok, Polaris, Gamibit etc. It was too bad Bryan Singer( egoistic guy) killed Havok , similar way he also killed Emma Frost off screen in previous movie. It looks like he want to kill any characters created by other directors. Almost everyone from X-men First class is dead. There was also a storyline where Gambit was one of the horseman. It would have nice way to introduce the Gambit like how Logan was introduced in X-Men( 2000).