Ok, I've spent three days in San Francisco now on business and all I can say is wow, this place rocks, seriously. Everyone must go to San Francisco at least once, it's one of my favorite cities now, if not my favorite:




Granted, Manhattan, will also win out of respect that it's, well... Manhattan, and the blueprint that most American cities wish they could achieve. However, I would move to San Fran in a heart beat. You all must go to San Francisco at least once.
Plus they have good beer, flipping hippies...