Frozen

I really enjoyed it. The things I didn't like were a few story things, but everything technical about the movie was pretty awesome. If it's animation, color choice or other design, it's pretty much spot-on. Even though particle dynamics and reflected light are going to be big computer-wank things in a movie about ice and snow, it was always subservient to the story - there wasn't a single part where it was really obvious they were showing off their cool new ability to generate this stuff. I enjoyed it a lot more than Desolation of Smaug.

( Somewhat spoilered )