This doesn't really answer your question, but something to keep in mind. I was in DW last Dec when they were filming the DW portion of the Christmas Parade. We scheduled our trip around not being in the MK while they were filming to avoid crowds. We had some rain while we were there, and we didn't know they pushed the date back due to the rain, so when we got the the MK 2 days after we thought they had filmed, we found 5 million Jonas Bros fans screaming and filling the park.

It wasn't too bad once we left main street for the first 1/2 day, but after they were done, all the girls went out in the park and it was crazy. Oh well, a crowded day at Disney is still better than being at home!!