I like H.R. Bloodengutz (humor and a mix of good scares) and Nightingales (terrified me) the best so far. I only did 5/8 houses though (missed Forsaken, Nevermore, and Saws 'n Steam).
I honestly enjoyed all of the scarezones. I think they did a good job on all of them.
I didn't catch Death Drums, but I did see Bill and Ted. It's an HHN staple and should definitely be seen at least once.