I voted for Thor, though I gotta say it was a pretty close call between that, X-Men, and Avengers 2.
I haven't heard enough about the Captain America and Amazing Spiderman sequels to be excited about them. Same with the Fantastic 4 reboot. I never really cared about Ant Man as a character, so I could care less about his movie. If the trailers look cool I'll probably go see it, but I'm not gonna be "Oh cool! An Ant Man movie! I've gotta go see that!"