Over all I liked the Park Hyatt Aviara.
The former Four Seasons is still worth the trip for the lovely accommodations and the relaxing spa. The food is a bit of a let-down, but then again, you can't have everything.
The room was well appointed and comfortable.
The spa took good care of me and lived up to the hype.
The food was generally okay, but not of 5-star quality.
All-in-all, I would give the Aviara another whirl and recommend that you do too.