A couple of quick comments on our experience on November 9th.
Not too crowded. We had no problems all day getting FP's via Max Pass. We wanted to ride IASW early via FP, and twice had our FP's of that ride converted to Anytime FP's, as the ride was down at least twice early in the day. We eventually rode around 11:30 AM.
For the parade, we entered DL (hopping over from DCA) at 5 PM. Main Street was not crowded, and we dropped our blanket on the curb in front of town hall with no problem. I stayed there while DW took DS & DD to the silhouette shop on Main Street. By the time the parade started, it was crowded, and we rolled up our blanket closer so it was only at the curb for us to sit on, and others could stand behind us.
Fireworks were canceled last minute due to winds (Fantasmic had been canceled the night before, but was able to run on this night.) We only had waited 40 minutes, but it was very disappointing. They re-ran the Castle Lighting show instead (and which we had already seen).