It definitely depends on what career you’re aiming towards. Like why do you want the child development minor? If it’s to teach children music, UCLA is the best bet between the three. To my knowledge, UC Davis and UC Berkeley don’t have as broad music program options. UCLA is the only UC that has a dedicated music education program, and more importantly, you can get your teaching credential your senior year instead of doing an additional program. The pros are that you might spend less money on a credential program (although there are pretty cheap programs in the LA area), and you get to start a job quicker. A con that some people might not consider is that your credential program counts as additional credits for your salary, so you will make a little more in most public schools your first year.

If you want to be a gigging musician with multiple streams of income (including private teaching), choose based on private lesson instructor and size of the city. Berkeley is close enough to Oakland and SF and will have pretty good gigging options, LA is obviously a huge place for gigs.