You're daughter should have a great time at Hollywood Studios. There is an entire street dedicated to Pixar with characters on the buildings. She could eat at Toy Story Pizza Planet and there are lots of little green men hanging from the ceiling. On the outside, there are Toy Story characters. Inside the Animation building, there was a cutout of Wall-E that you could take your picture with. Sometimes, Mike and Sulley from Monster's Inc. are out and about.
Over at Magic Kingdom, Mike from Monster's Inc is at the Laugh Floor. There are also more Monster's Inc. characters in the show.