I have no idea how much effort each one is putting into it, but Saban and Meyer have the benefit of being great coaches as well. They have 7 championships between them with a likelihood of more.
After we went 12-1, the top three recruiting classes were by Saban, Meyer, and Kelly. If Kelly could put forth a top 5 team each year, I think that would be the norm. Instead, he is going 8-5 but still pulling classes typically ranked about 10th.