Walt Disney World is my absolute favorite place on Earth. I've spent years on end of my life learning the inside outs of the place. I've never had a bad trip. Ever. If you have any questions feel free to ask! You can also go to your local Books-a-million, Barnes & Noble, etc. and find some trip planning literature or behind-the-scenes. If your going in December you might see me there!
My personal favorite park is Magic Kingdom/Animal Kingdom (They're both so great I can't choose.)