I've been lurking on this site for a bit (trying to get a refurbished IPhone as an upgrade to my AT&T account but guess you can't), but I noticed this topic. I just wanted to chime in to this topic. Full disclosure: I went to UCSB but also took summer classes at Davis and lived there 3 months (South Davis at Drew).
I don't see how some of you guys are under the impression that Davis has the better academic reputation. Both Davis and SB are ranked #44 nationally by US News (they tied, also tied for #12 for just public universities).
Also, UCSB is not Santa Barbara. Downtown Santa Barbara is 11 miles away. That's like saying UC Davis is in Sacramento and then describing Sac. UCSB is adjacent to Isla Vista, the most fun college town in the world...
I was accepted to both, and chose UC Davis, simply because the transportation to Santa Barabara is extremely limited. I'm happy with my decsion.
I take it you're from Sacramento based on your profile? Just hop on the San Joaquins at Sacramento Amtrak and take the thruway connection at Bakersfield to Santa Barbara. Then hope on the 24X SBMTD bus and you're right on campus.
As for pre-med, there's opportunities in SB too. Keep in mind that Berkeley doesn't have a med school either, although UCSF functions similarly as one. At UCSB, you have the Cottage Health system. They have many med-related opportunities and ability to sign up as scribes in the ER.
I still loved my 3 months at Davis though, and both schools are great. I would say academically they're almost equivalent, just choose whichever one you feel more at home at. I was from San Francisco and I wanted a change of environment and get farther away from home so I went to SB.