We visited DL last year Thursday thru Sunday before Halloween on Wednesday. I though crowds were moderate. On an early entry
morning we were at the gate 15 mins. early and hoofed it directly to Nemo and were on the 2nd sub.
I know one morning we road Big Thunder 4 times without waiting.
It seemed to get crowded in the afternoons/evenings like normal.
We still had more than enough time to ride everything we wanted multiple times in the 3 days we were there.
We are heading back this year October 30-November 2.