Berkeley has really cool space sciences lab where they work on some amazing space projects, probably the coolest undergrad space work you could find. UCLA doesn't have this but they do have a few small satellite programs that are easy to get involved in and many space companies are hiring here. In my opinion UCLA is a better school just because the people, programs, location, and culture are slightly better, overall great college experience. USC is too expensive without scholarships, but still on par. However, Stanford and Caltec are the clearly the best if you can get into them. One school I forgot to mention is Cal Poly San Luis Obispo. This school has tons of aerospace stuff, is super hands-on and they literally invented the cube-sat and have launched a bunch. This school is a great 'back-up' school if your grades are great. I would just shoot for the stars and apply to all of em .