Last three movies I saw:
I am Legend
Sweeny Todd
Juno
My favorite was I am Legend (I agree with you about the ending though), then Juno, and then Sweeny Todd. I'm planning on seeing Walk Hard sometime soon.
Usually though, I'm a fan of comedy and that's what I'd watch if I had to pick a genre. I could also watch anything about space and physics (mostly stuff that shows us how small we really are in the universe), but those are usually documentaries or educational programs.
Right now, I'm looking forward to Cloverfield, Wall-E (space movie by Pixar), Dark Knight, and Hancock (comedy by Will Smith), although Hancock looks like it could be pretty crappy.