I have a sister who's REALLY into ghost-hunting, she's done the Queen Mary, the... oh shit, what's the place in Old Town San Diego..? Crap, I can't remember, she's done a bunch of places. I used to stop in at the Coronado often when boating when I lived in San Diego, and there's a vibe in some of the areas of the hotel that can only be described as... it's like The Shining.
We've got a LOT of haunted hotels, B&B's and then the Preston Castle downcountry from us. The Union Inn in Volcano has a lot of sightings, it sits next to the old courthouse and the hanging tree used to be right in front of the building.