"For the curious, the highest average wait time during Mickey’s Not-So-Scary Halloween Party belongs to Seven Dwarfs Mine Train (no surprise) at a 36-minute average wait. Attractions like Haunted Mansion, Space Mountain, and Princess Fairytale Hall are right around an average of 20 while the lower end is made up of rides like the Barnstormer, it’s a small world, The Many Adventures of Winnie the Pooh, Buzz Lightyear’s Space Ranger Spin, and Under the Sea, all between 5 and 8 minutes.
For some perspective, the day I went last year was ranked # 20 out of 32 parties (Oct 30). Most rides were close to walk on. 5 min or so for POTC maybe. We skipped Space and most of the kiddie rides. Barnstormer we rode repeatedly, as we did BTMR. 7DMT was 40 min wait per the CM at tapstyle. Watched the 2nd parade from Town Square and we were at the buses ahead of the mad rush - probably around 11:45pm. We did not participate in free treats or characters - only collected candy for the first couple stations (more than enough for 1 kiddo!). I seem to recall we ate at Cosmic Rays.