For me, Pacific Dunes.
Prior to playing it a few years after it opened, I had read everything I could on the course, prowled the web for pictures, talked to people who had already played it, thought about it, dreamed about it, for one solid year before playing it.
On the flight over I began to worry that there was no way this place could actually live up to my expectations. I prepared myself for a letdown.
Pacific Dunes exceeded my expectations and it is the course that completely changed my view on golf courses and what I think they should be about. It is a very special place, just wonderful.