HHN has severe capacity issues, but (and depends on your personal point of view) is still a far better event. I love the MS decor, Boo to You and Hocus Pocus... but the rest of the event leaves a lot to be desired.
HHN is 10 new full blown well done houses, 5 (I'd say 3 since 2 are always a dud) scare zones and a terrific live stage show. All included for about the average ticket price of $95 (max. $123 w/ pre-paid, $140 at gate)
You also don't need to spend money on express to enjoy yourself at HHN. You can easily hit up 5-6 houses, live show, and eat some of the unique food without running house to house or worrying about express.