Ranking wise, only UCSF is top in CA. You may need to check out Buffalo's ranking but more important their passing rate for licensing.
I still surprise how many CA students afraid of cold weather. I studied in Idaho and it was no big deal. My sister studied in Toronto and she was fine. Of course if college life means party on the beach then you should stay in So. Cal.
I suggest you to check out more info. from Buffalo if the scholarship they offered is generous.