Well I avoided Sorrento Valley because of schools.
I avoided UTC because I didn’t want the kids in Condos. However it sounds like you don’t have any of these issues. I most certainly would have chosen UTC or Sorrento Valley otherwise because I don’t like to have a long commute either. So it really depends on what your personal interests are outside of work. Pretty easy in Cardiff to hit the beach on the weekends and evenings for a little surf time.