Digging up an old thread - does anyone have a preference between the Peninsula, 4S, or the Waldorf? My coworker raves about the Peninsula (and the one in Tokyo is probably the best hotel I've stayed at), but having only really been in the city once (and stayed at a DoubleTree), I was wondering what other people thought. Will be in town for 2 nights in late September and looking for luxury hotel that is convenient.