From those movies, definitely Star Trek for me.
Seen Iron Man 3, Which was fair awesome, Pacific Rim looks good & while i'm not eagerly awaiting it, i'm sure i'll love Thor 2 when it comes out.
Haven't even seen Hobbit 1, so meh on the idea of 2. I liked the idea of World War Z, despite not having read the book, but from what i've heard the movie kinda threw half the book out the window & i'm not a fan of the whole "fast Zombie" thing...
Man of steel is just a no from me. I've never found superman to be all that interesting, and as a superhero seems a cheat to me with his almost catch-all powers...