Bicycling Magazine this month rates US cities for cycling friendly and infrastructure.

Best Overall City Portland, Oregon

City Size:
> 1 million 1. San Diego 2. Chicago 3. NYC
500K to 1million 1. Portland OR 2. Denver 3. Seattle
200K to 500K 1. Madison WI 2, Tucson 3. Albuquerque
75K to 200K 1. Boulder CO 2. Eugene OR (wOOt) 3. Ann Arbor
Small town 1. Davis CA

For what it's worth