Tom, your point about playing 18 at Pebble, one of the most famous holes on the planet, made me wonder how much history and fame have to do with people's preferences. For me, it's just not that big of a factor. If I prefer the course, I'd rather play a hidden gem than a course that has hosted major championships. Walking in the footsteps of legends doesn't get me going that much.
Now, Pacific Dunes is not hidden and I'm not saying that your opinion is solely based on the history and fame of Pebble, but I wonder if people would prefer Pebble over Pacific if you took away the history there. A purely academic question, I grant, but my guess is that few people would.