That certainly won't be the Poly. We were there this past Christmas and honeslty, you wouldn't know it was Christmas at all by the (lack of) decorations. I would say of 3 resorts serviced by the monorail line, your very best bet for decoration is Grand Floridian. Personally, I find it stuffy, but the lobby at Christmas time if magnificent. We're WL'ers for sure and find that it is the VERY best for decorations, but it's not on the rail. As for the Contemporary, I wasn't overly impressed with the decorations, but it is great for kids. Good luck and enjoy.