I think that most people would. Especially since UCSD is in the nicest part of SD too (La Jolla).
I've been to Austin as well as many other parts of Texas. I agree Austin is different than the rest of Texas, but if you use this as an excuse, then you will be pretty hard pressed to like rest of Texas. I was fine with it for a while, but Texas just isn't my kind of place.
Location-wise Socal has it hands down, unless you're a Texas kind-of guy.
And again, if you're even considering RF - I highly recommend UCSD.