Your very welcome!
I am not sure about the resort line if one of the guests doesn't have a room key. I would assume since your all in the same party it would be fine, but I have never used the resort line because I always do Stay and Scream.
You mentioned you have AP's to Universal. How many days are you going to Universal on this upcoming trip? If you are going more than one night, and your going in the first three weeks, I highly suggest getting the Rush of Fear ticket. With your AP discount, its only $81 before tax and is valid every single night the first three weeks with that single ticket! While one night can be enough for some, it's always great to have an extra night or two. Heck, even if you have plans in the evening at say Disney, they close at 9-10 and with your AP you get free parking and its a short 15 minute drive between the two to spend a few extra hours at HHN. With 9 houses, 6 scarezones and most likely 2 shows, that is a LOT of stuff to see in a single night...not even counting rides! Popular houses can, and will, hit 120+ minute waits almost nightly. If you can only go one night, keep a close eye on the forums before you leave to figure out a good plan of attack to try and see it all.
This will be my third year in a row and each year I keep adding days. The first year I went 2 days. As a total horror/haunt newbie, that was a good starting point but by the time it was over, I was kicking myself for not going the whole weekend. Last year I went 4 nights and had the Rush of Fear with Express ticket and that was a good amount of time allowing me to visit a total of 50 houses by taking advantage of Stay and Scream. This year, I am going 8 nights and I am so excited! Doing the first weekend to just soak it all in and then doing the behind the scenes lights on tour to kick off the 2nd weekend and I will spend that weekend really looking at all the insane details they put into these houses.
On a side note, your going to love DA! I could spend hours in there exploring all the buildings. SO many more details than Hogsmeade. Looks even better at night. I am sure they will keep it open again this year. They are going to need everything they can get to drag people away from the MIB house once Bill and Ted lets out.
