I voted Pixar simply out of love for Ratatouille, Walle, UP and the Incredibles. The tide has turned the last few years though where I have enjoyed HTTYD, Monsters Vs Aliens, Megamind, Kunfu Panda and even Rise of the Gaurdians and Puss N Boots over Cars 2, TS3, Brave, Monsters 2. Granted, this years Turbo and The Croods were not great for me though my 8 year old enjoyed them. It is not the slam dunk it was a few years ago when Toy Story 3 won the animated academy award over the much more deserving HTTYD merely on Pixar reputation over Dreamworks at that time.
It's all good though and HOPEFULLY a little competition will motivate Pixar to get back to creating truly wonderful movies. Although both companies were blown away by Illumination Entertainment's Despicable Me 2 this year that out did Monsters Inc by almost 100 million at domestic box office. Box office is not everything, but that is a substantial number further showing Pixar is not as dominant as they once were.