LA or San Francisco?

US east coaster wanting to go west for the first time. I like different unique cultures and big cities, and I like to be busy. I’ve been to the northeast (Boston, NYC, Philadelphia, DC), the south (Miami, New Orleans, Savannah), Texas (Dallas, Houston), the Midwest (Chicago, Milwaukee) and Vegas a few times. I love all those places for different reasons. Never been to California. I’m debating on LA or SF. From what I can tell SF seems very unique and tourist friendly. Is LA all that different? Is LA more ‘California’? I don’t know the first thing about California in general. Any input is appreciated