Kung Fu Panda 2
I know this came out last year but I just saw it on Blu-ray and was blown away by the art production and animation. Except for breaking the laws of physics in some scenes and silliness, the story holds up fairly well, but the real star is the concept design, animation and lighting. Check it out especially on Blu-ray if possible because the detail is not to be missed. Also watching the film (in the extras) with the animators and production design team commenting is a real treat.