We went last Christmas and it was crowded - Fast Pass use was critical and allowed us to do everything. We went to AK on New Year's Eve because we knew it would be the least crowded park because it didn't stay open until midnight. We went to Hoop-Dee-Doo for our NYE dinner. It was very nice. Members of my family went to Epcot at 10:00 PM and had no problem getting in for the midnight festivities which they said were awesome.