Saban.
Most tend to believe the SEC is the better conference of the two which means Saban played the tougher schedule and while it's not hard to recruit at LSU and Alabama, I'm thinking it would be even easier to recruit at USC. Between California being a massive state that produces a bunch of a talent, better weatger and living in Los Angeles... USC sells itself. Kiffin starts out ranked #1, has a terrible season and kids still want to come despite the fact he's an average coach and will be fired if he has another bad season. They're going there simply because it's USC and everything else the school offers. I don't think you're going to see a lot of kids who want to go live in Alabama for 4 years if they have a crappy coach. USC is an easier job and Saban still had a better career.