Personal preference, for horror nights if you don't really care about any of the event-specific food, and you want something moderately hearty, I'd say you can't do much better than Three Broomsticks in Hogsmeade. From my experience last year, most people opted for event specific locations or springfield for food, since they're out in the open, but I think either people didn't realize three broomsticks was open, or they were just too busy passing by it to get to mazes, since on the few occassions I went last year, there usually wasnt a line for food, and it was moderately empty inside.