I made it a point for our family to visit all the deluxe resorts just to see the Christmas decorations. We actually stayed at WL where the decorations were amazing. Everywhere you looked there was something special for Christmas. The GF's decorations (gingerbread house, garland, tree, etc.) were good also.
The Yacht Club had a train set-up and another resort had a chocolate carousel.
The Contemporary had a confectionary Pinocchio set-up and a sort of large pop culture Christmas Tree out front. I don't remember the Contemporary having anything extra special.
The Polynesian had decorations but I have a hard time with "tropical" at Christmas.
The AKL had a really interesting tree, but with two small children we did not stay there due to it being far from MK. We were only there to eat dinner.
I have a hard time getiing into the Christmas mood with all the events and making sure it is great for our family. Last year when we went to Disney during the Thanksgiving week. The vacation put me in the mood for Christmas. It was great. I hope you have a good time.