The majority of people will stay at whatever hotel is chosen as the official festival hotel. That hotel has not been announced yet, so unless you want to get a room at a random hotel that's not far from the festival and don't care about being at the official hotel, I would wait until it's announced.
Here's info if being at the official hotel doesn't matter to you:
http://www.heathencrusade.com/hc3/hc3_hotels.html