Go Bears!!!
I feel strongly compelled to reply. I graduated Cal in 1995 with a BS in bioengineering. I'm thoroughly familiar with its bio department and, contrary to true777's assertions about stanfurd and Cal, you will not find a more rigorous academic curriculum (just like a stanfurdite to claim that Cal is not as rigorous. Just not as coddling as leland stanford JUNIOR university 😎 ).
Perhaps the most important distinction among these schools is their size. Cal is a big place and it's easy to get lost. If you never want to meet the prof in your bio 1a class of 150, that's easy. If you want to schmooze with the prof to get into her/his research lab and pad your application for grad school, that takes a bit more dedication and determination, and there's some competition for that. Cal's biology department (there are 2: Molecular and Cell Biology, or the typical cellular and biochemical process level biology; and Integrative Biology, which deals with organisms and ecosystems and other things in macro-level biology) is replete with premeds. The #1 major for premeds at Cal is MCB. So there's a hugely competitive atmosphere in the labs and at these giant lecture halls. It's you and 300 of your closest friends in the MWF 9am lecture of Chem 1a. May not appeal to you.
Because of its size, there's tremendous opportunities for extra curricular involvement. I was in the Band, played with the orchestra, and jazz band. I was in a mechanical engineering research lab. The Bay Area is a great place to live with lots of things to do in SF, some great hiking and great scenery. Whatever you want to do outside of class, you'll find it at Cal.
Whatever you choose, get involved in many things outside academia and I think you'll be happy. Few go to Cal and are unhappy. It was a great experience and prepared me well for med school. Much of my first year med school was a re-hash of what I learned at Cal (anatomy, biochem), so what you learn there is high class. If grad school is in your future, no undergraduate institution I think better prepares students for graduate study. I was accepted to all 4 institutions you mention, and I'm glad I chose Cal. Did I mention the alumni are fiercly proud of their experiences there? GO BEARS!!