To me it’s a no-brainer. Saint Mary’s.
That said, don’t go in thinking that the classes will be easy. You’ll still need to work for your grades. Many top high school students stumble when they get to college because they underestimate how easy it is to lose points in college and/or they don’t realize that profs will test on material not presented in class.
Don’t worry so much about research as a premed. Get some if and when you can.
But med schools are REALLY looking for applicants who’ve done true volunteering, community service, service to the underserved. Some can be medically related (volunteering in a hospice, free clinic, etc) and some can be not medically related at all…but serving low income/elderly/etc (people that are different than you are.
Too many are spending WAY too many hours shadowing, when maybe 50-100 hours max is needed …spread over a few specialties, and should include a couple of primary care physicians.
No one cares about UCB’s “prestige”.
And most successful Calif premeds matriculate at med schools outside of Calif…so be ready for applying OOS.