Rack another vote for Colorado! I'm in Denver and love it. Mountains for hiking, biking, kayaking, hunting. All kinds of city parks and trails, open space/naturalized areas. Very sports oriented with the Avalanche, Broncos, Rockies and Nuggets. Also have lacrosse (Mammoth) and arena football (Orange Crush). We've got all 4 seasons and they're each fabulous. Casual vibe to the city. If you want to get wild - you can, or if you want to shoot pool - you can. The arts are well represented also. Always live music to be found.
I grew up in the Seattle area - cool city, shitty weather.
Have lived in Portland - cool hippie city, great weather for the northwest.
Cali locations I've spent considerable time:
Pebble Beach - beautiful area, nice temperate weather, people are a 50/50 split of uppity rich folk and cool filthy rich folk.
Monterey - same scenerey but more 'regular' folks. Kinda artsy-hippie vibe.
Newport Beach/Costa Mesa - great southern Cali weather, fun/casual/surfer type peeps but a bit too close to the "Hollywood Machine" for my tastes.