We went to last night's party as well, and had a great time. It did seem a lot more crowded than past years, but not unmanageable. Our priorities were the stage show and the parade. We got a spot in front of the castle (just behind a construction wall) about 7:45. That allowed us a great view of the show, and a great second row spot for the parade. The show was good, but I loved the past few years shows and didn't think it was quite as good.
After the parade we wandered over the HM to watch Renata, who was amazing. After that we wound our way back around the park ToTing and were just behind the carousel as Hallowishes started. Watched that (a great view wasn't a priority, we'll watch it again from our room at Poly tonight), then continued to Tomorrow land in time to see Sulley do the thriller dance. We didn't do any m&gs, and left the park around 11:30 with a bif bag of candy.