Here is a review you can look at for OBGYNS in Berkeley (which is what I
used): http://parents.berkeley.edu/recommend/medical/ObGyn/2915.html
I personally used many of them as I was in hospital for a long time but I
specially like Dr Metlock (my primary OB) and Dr. Honegger (the dr who did
my emergency C). They are both great. I initially wanted Dr Arzou but she
was ok in my experience (I would say that she is well qualified but a little
less compassionate to deal with a very complicated case like mine).
Good luck