Maleficent is obviously the most popular at the moment, with her new movie out in theaters. There were some villains that showed up that I had forgotten even existed! All in all, it was a great night- not too sure what a slumber party has to do with bad guys, but we were all more than happy to see them, that's for sure! Oogie Boogie has always been my absolute favorite!
If you missed out on the 24 hour party, sucks for you. Just kidding- there are always cool things going on, you just have to stay on top of the news and keep an eye out for special events that interest you. I use this disney site to keep up on the news and events and so on.