We were there Dec 27- 31 last year. Stayed at DLH. We did EMH every morning did all the rides. Went back to the pool each day came back at night. Definitely very busy and crowded. We had a great time. I think 1-4 pm seem to be the busiest time.
I think the first half is busy becauseof the holiday and the second half is still busy because of everyone trying to avoid the crowds and all those AP blockouts get lifted.
And it also seems ever year it gets more crowded at different times than we all thought would get crowded. If going during the holidays I would say have reservations for food, go back to the hotel and relax, be very prepared for the crowds and PLAN. PLAN. PLAN.
We will be there Dec 21-25.