If you go the full week before christmas like 11-19 there really isn't much of a croud, at least in my experience. Last year we hardly waited more then 5-10 min. for most rides. It was great but I was told the week leading up to christmas WDW pretty much fills to capacity and parks sometimes close to the general public by mid morning to early afternoon. We had such a pleasant time last year we are going back this year for a short trip 14-19. Can't wait.
Disney-princess