Legendary Truth - not due to its consistency (way too timing based), but due to the inventiveness of its scares, gorgeous sets, and solid casts. I support the wicked innovation found in this house, and I hope we see more of it in the future.
Catacombs was a VERY close second - most consistent, intense house of the event with some very solid sets and theming I really enjoy.
The Orfanage rounds out my Top 3 - incredibly atmospheric & creepy house with fantastic casts & sets. Great to see Cindy.
I'm not sure I understand the love for Hades. I'm a HUGE fan of Greek mythos and I found the house to be pretty unremarkable - there was no real plot, just a barrage of mythical creatures (many of which don't even exist in Hades...). I don't know, I felt like too much was cut - no Cerberus, no Hydra tentacles, no Hades (WTF?) - and I found the sets lackluster. Mind you, it's still my #4 for intensity and the greatness of its costumes, but surely not the best house ever (at least in my opinion).