Well, Florida State isn't open the other three jobs are equal although it's significantly easier to get to the CFP at USC.
I think it's a hell of a lot harder to recruit to USC than the other places
That's cire level wrong. Rivals class ratings started in 2002. From 2002-2018 USC were in the top 10: every year but one, that one year they were 13th. In that 17 year time frame they had the #1 class 6 times. Helton got fired because he was an awful recruiter, but even he, in his 6 classes had classes ranked 10, 6, 3, and 8 it was the two classes between that 3 and 8 that did him in. Since Rivals started class rankings USC has had 4 coaches, all of them had at least 1 top 3 class, Helton is the only one to not have multiple top 3 classes.
USC is still easily first choice for all California recruits and most recruits west of the Rockies.