Most Polluted (bad, not good): Zurich
Funnest: Munich (Hofbrau!)
Most Diverse: Greater LA, CA (went everywhere from Pasadena down to Santa Monica, Anaheim, Long Beach, Downtown LA, Hollywood, Beverly Hills, Glendale, you name it)
Most Relaxing: Bavaria/the Bodensee (especially Lindau im Bodensee).
Best Beer: Munich (Hofbrau again)
Coolest Museum: Friedrichshafen (Zeppelin Museum)
Most Laid Back Part Town: Key West, FL
Best "Touristy" Destination (Tie): Cozumel & Cancun, Mexico