Oh wow - there are so many - my favorite is a plain ordinary patchwork. Because I like to see a full piece of the Christmas fabric. Did I mention that I have over 200? Another one would be The Falling Charms pattern. I agree the Turning 20 would also be a good choice. When I did a Turning 20 with Halloween fabrics I framed each block and it high lighted the fabrics in the quilt instead of letting them all blend together.
Have fun with whatever you decide to make.