Much as anyone can be, Nick Saban is probably the GOAT when it comes to college coaches all-time. Bear won 6 titles in an era where you would have 2-3 national champions a season because your postseason was just wherever your conference wanted you to go in the bowl game. Saban's won 6 (probably 7 this year) in an era where the SEC is as good as it ever has been, and teams have to play a national championship game and now a playoff where you have to go against not one, but two teams that are top quality and specifically selected because they are the best teams.