Oooh, that's a tough decision--but a fun one.

I have stayed at all the deluxes except the Contemporary, and I honestly enjoyed each one. They each have their advantages and their drawbacks and their own unique theming.
That being said, my favorites are the GF and the AKL, particularly in December when all the decorations are up. Here are my reasons:
GF--I truly felt pampered during my stay here. The resort is so elegant and feminine (but not too stuffy), which I really like. The standard rooms come with things that you must stay in concierge to get at the other deluxe resorts like robes in the rooms, upgraded toiletries, etc. The convenience of the monorail is terrific for going to the MK and Epcot (my 2 favorite parks). The Christmas tree in the lobby is gorgeous, and I love the orchestra that plays in the evenings. The staff always says, "Have a Grand Day," and I really did when I was there.
AKL--This resort has the most impressive theming of any Disney resort, IMHO. I am not really an animal person, but even I found it absolutely incredible to see animals right outside my balcony--truly awesome! This resort's lobby is so unique and interesting, and I love the wonderful aromas that drift up from the restaurants on the floor below the lobby. The AKL also has a really impressive tree for Christmas. I love eating at Boma also. The only drawback to this resort is its somewhat remote location, so I like splitting my stay here with another more centrally located resort. The bus service here is very prompt though.
