EXCELLENT POST! Let's get more feedback, please!
I'll cover UC Davis, UCLA and Georgetown:
UC Davis has a decent gym if you like running and/or basketball. They have 5 indoor courts for pickup basketball and a track directly above the courts. Somehow they very unfortunately became roughly and inadvertently racially segregated during the time I was there: with three courts going to Asians, one to whites and one to black dudes and the few white ballers. Needless to say which court I was posted on.
UCLA has great facilities, but they are so freaking crowded that they may as well be terrible. If you hope to get into a basketball game at any waking hour of the day or night, plan to wait up to an hour.
Georgetown has pretty nice facilities and it is generally possible to get on any machine you want fairly quickly. Plus, they have a sauna, which to me is a necessity.