I had my last baby at UCSD and will be having this one there, too. There are OBs and midwives, there is a birth center on one floor of the hospital and a floor below is regular L&D. I saw the midwives, really liked some of them, wasn't crazy about some of the others, but overall was pretty happy with the experience. I was supposed to deliver in the birth center, where there are labor tubs (no actual water birthing is allowed, much to the consternation of the midwives), birth balls, nice big beds, etc. I ended up going to L&D because my labor was so fast and there was no nurse on staff in the birth center, but had a midwife still, and L&D was really fine.
The stats on the OBs and midwives are pretty good, low C section rates, basically no episiotomies. It would probably work out nicely for you since you could start off with midwives and easily transfer to an OB and still be at the same hospital and so on. The hospital is in Hillcrest, but there are clinics for prenatal care in several areas around town, including Perlman in La Jolla.
Mama to 3 awesome girls: DD1 born 2001, DD2 born 2002, DD3 born March 2011