College Choice... Pepperdine or UCSD?

Hello,
Background: I’m from San Diego, an avid surfer, and am christian. Pepperdine is $22,000 a year for me, and UCSD is about $25,000 a year. I don’t know what I want to do in life yet but maybe teach biology or go into research/sell biomedical devices?
I got into both schools for biology and I was wondering which one I should go to? I know it’s a typical post but I’m honestly stuck and don’t know which one to attend ):

For that price, it’s hard to justify giving up a private education for the crazy rat race of a UC. If you don’t mind the cozy little campus and having to drive into Malibu for good food, it’s a great place to spend 4 years.

I would have encouraged my son to attend but I knew the price tag wouldn’t be comparable to a UC for our family. Now he’s deciding between UCSB, UCI, and UCSD. Good luck with your choice. Both are excellent schools.