You guys DO realize that some of these movies you're picking aren't PIXAR, films, right? Shreck is NOT PIXAR, neither is Monsters Vs Aliens, nor Ice Age... If the question were just which computer animated movies were the funniest, the answers might be a good bit different...
Number Two: Conform, Number Six! Conform!
Number Six: I will not be stamped, filed, indexed, briefed, debriefed, or numbered! I am a person.