Flying out for 12 nights on October 28th. Got 14 day passes to Disney/Universal and have booked into Halloween Horror Nights on Halloween night. Can't wait
I have been on Halloween night before... If you can, get into "Stay and Scream" and pick a zone closest to the houses you want to visit first.
Queues on Halloween night can get very long. I had to queue for 2.5 hours per house!
I love it though so well worth it haha.