USC is beautiful but isn't in the most glamorous part of LA.
Having spent a lot of time around UCLA...I really don't get why they can't get about any teenage recruit they want. I mean I'd have gone there in a heartbeat as an 18 year old and ignored every other offer, especially that it's a good school on top of all the rest. It's just a beautiful place in the most perfect climate in the US.
The Rose Bowl is cool but it's very disconnected from UCLA (26 miles and cutting through some mountains). I used to live 10 minutes from UCLA but 30-40 minutes from Rose Bowl. Now I live 10 minutes from Rose bowl but 30-40 minutes from UCLA.
USC does have the on campus stadium vibe and in some ways being near their campus on football saturday seems like the only place in the entire state of CA that cares about any college sports.
Either one of them could play games in gigantic SoFi someday if they aren't already. For UCLA it might be closer than Rose Bowl. For USC it'd just be 7 miles from campus instead of on campus.
It's going to be wild living near Rose Bowl and seeing a bunch of Nebraska derps roll through for regular season games even when they suck. (as opposed to teams earning a Rose Bowl spot)