Exchange student to UC.(physics). Let me know about UCSB and UCLA

Hi all, Im a korean undergrad student applying for exchange student program to UC universities. I have trouble choosing between LA and Santa barbara! I know both are good. But, where do you recommend to apply? please consider that Im a physics major and want to study particle physics! I want to meet excellent professors and want to do research with!

any short comment would be appreciated!!

thank you!