Pixar for me.
For me, Pixar are like The Beatles of animation. They're so far in front, that it's going to take a long time for the rest to catch up.
All Nath's rant did for me was highlight the one "bad" film Pixar made (Cars 2), and highlight one "good" film Dreamworks made (How To Train Your Dragon). I enjoyed both Kung Fu Pandas, Antz and Shrek, but even without the mighty Toy Story trilogy, they still can't measure up. Sure, Pixars scruples may not be as pure as they once were, but I can't think of any leading voice talent in DW's oeuvre that doesn't reek of stunt casting. Christ, they even make their fish look like Will Smith!