They change them a bit sometimes, from year to year. One year at the Boardwalk Inn, as you entered the aroma of chocolate assaulted your senses! They had the boardwalk recreated in chocolate (and some other candies). Incredible.
I don't honestly remember what is at the Contemporary...
But there are really nice displays, and then there are the lovely decorations at every resort. It's well worth part of a day to tour the hotels and just take in all the holiday trimmings.
Gives you inspiration for your own home, too.