I can't go the separate best and favorite route... I know what Sean means, but I really think courses can and should be the same thing. If not, what makes a course better? For whom?
So I shall give just three.
Olympic Lake
Riviera
Winged Foot West
sorry Gib.. I do dig your home course... and as for WF, well... East was very very fun, best West gave me more goosebumps... something cool about attempting a putt Bobby Jones made to force a playoff....