Best US cities for 20-30something gays

Where in the US is best for recent college grads in your opinion? Where have you been in the states that seems to have the healthiest/best/most diverse gay culture? I'm not just talking about a couple bars, clubs, etc but also other stuff outside the 10pm-2am time of night like gay sports leagues, gay coffee shops, gay bookstores, etc. What city seems to have a good balance for those gay couples transitioning into the part of their life when they settle down and want to build a family?