I've been to Miami the last 3 years in South Beach specifically. There are some hot girls for sure, but it didn't seem something insanely out of the ordinary during the day... only when u went out and their hair extensions, layers of make up, and designer whore dress do they look good. Ive been to a decent amount of large cities, and in my own experience Phoenix had the hottest by far.. I haven't lived anywhere for a very long time to give a fair judgement on any major city though.