You're not kidding about the UC-required prereqs, I feel like I've been in school an extra year just to satisfy those requirements. This current Spring is my last semester of UC prereq classes (3 classes).
My cumulative GPA is ~3.90, science GPA is ~3.95. I have a few thousand hours as an emt (on an ambulance and as a firefighter), plus other experience from various jobs. Speak 3 languages, and lots of extracurricular & volunteer. I also realized after the fact that my PIQ's have a few typos. Oops.
I honestly have no idea how it could go; all I could do is spend too much time focusing on the stats of 400 applications and only 10 admitted transfers. Can't imagine there are 390 "bad" applicants, I'm sure a majority are amazing and diverse superstars. So who knows what the UC's want.