I wouldn't have put USC in the Top 5 a couple of years ago, but since they built the McKay Center they are certainly Top 5 worthy.
UCLA doesn't even have full length practice fields. They recruit and prosper just on name and location (I guess on that note, maybe they are Top 5 worthy). It's scary to think what they might do if they ever emulate the McKay Center (but the old Pac guard is a lot like the old Big 10 guard, slow on the facilities uptake until very recently. Michigan's player facilities blew until the last few years, they couldn't even get the whole team into their old dressing room).