I highly reccomend the HHN VIP Tour. If you are planning to go on a weekend night especially. HHN VIP Tour prices vary, look at halloweenhorrornights.com
Some nights are already at capacity, so book now if you are planning to go. I have taken the VIP Tour during HHN since it's inception, and it is a GREAT THING. Your VIP Tour Guide takes you on an efficient, hassle free tour of all HHN venues, where the regular line is sometimes 90 min. you are in and out in 10 min. We enjoy the GREAT seats at the 'Bill and Ted' show the most!! You get to go to Terminator 2, and Men in Black through the back door too!