Is it Mario, or is it Bama, Oregon, Miami though?
It's Mario.
Bama is an interesting case study, but these results speak for themselves:
Mario Cristobal All Time Recruits. Also, while Bama would get South Florida guys before him, he effectively shut it down while he was with the Tide.
As for Oregon and Miami, it's clear that Cristobal was the reason behind their success. In the six years leading up to MC's first full recruiting haul, Oregon signed the #13, #18, #25, #17, #26, and #22 classes, according to Rivals. Cristobal's three full classes at Oregon were ranked 7th, 9th, and 3rd overall.
At Miami, Cristobal currently has a Top 5 class, and signed the #8 class last year. The six classes preceding his arrival were ranked #34, #12, #13, #35, #6 (the class signed during Richt's best season at Miami), and #11.
The guy can recruit.