HHN 22 was definitely the weakest overall event of recent years. No scare zones (thanks, Superstar Parade!) and most of the houses were mediocre at best. Didn't help that we only had 7. Or that the front of the park was a brightly lit construction zone. It was also the start of intellectual properties making up a majority of the event, a regrettable trend that has unfortunately continued, albeit with better results.
I still give HHN 15 the edge for worst ever. Great idea, terrible execution. The website was better than the event itself. Yeah, good websites. Remember those?