You can go French with Bouche de Noel, or you can go Brit with Figgy Pudding. Are there any other choices? Oh yeah, Struffoli. I do not like that one even though it is Italian.
Struffoli:

Do not even try to make a Bouche. Order it from the bakery. They will make whatever size you want.

Bring me a Figgy Pudding. Easy to make yourself.

What do you like for Christmas Day dessert?