Not as ambiguous as you might think. The main problem on SDN seems to be with the way rotations are set up at Touro. While you have the opportunity to rotate in the Bay Area, you're not guaranteed a spot there, and you could end up going all over the damn place depending on how your luck is in their lottery system.
You pick your sites, submit them, the computer rolls the dice, and then spits out where you're going. Extenuating circumstances aside, I've heard many TouroCA students complain about the logistical pain in the ass of not really having set rotation sites.
The staff at Touro also tend to be a bit disingenuous when plugging their school. There's another user on SDN who has posted a list of questions you should ask your interviewer, should you have an interview date in Vallejo. Try to remember that if something's too good to be true (guaranteed rotations in the Bay Area, for instance), it probably is.
Staff also has a reputation for high turnover and this translates down to more negative experiences when students go to ask for help, especially during the scramble for rotations.
HOWEVER, the reason I'm having such a hard time deciding is the proximity to home. I'm Bay Area born and raised, so it's a bit of a tough call. =(