What crowds? LOL.. we went last september from the 10th to the 17th and I think our longest wait was about 20 minutes for Dumbo because it's always busy and there's no fastpass. Most other things were walk on or under 10 minutes wait. When the lines were a little longer we used fastpass.
One time we passed by Peter Pan and there was a 40-50 minute wait in line, but the fastpass return time was in 30 minutes.... I guess people just don't know about it!
Anyways, we were so happy with the lack of lines and crowds that we're going back again this year.. I think it's a great time to travel!