Coach Saban is the best at:
2) preparation (strength/conditioning/play repetition)
3) mental aspects of the game
No one will ever accuse him of being the best coach at game day strategy. His strength is in what is done before the game. He will put a bigger, faster, stronger, more prepared team (mentally and physically) on the field than you do. But he will never be accused of being the best game day coach. For example, he is horrible at managing our timeouts before halftime (wastes them many times when we could have gotten into scoring range had they been used).
But i wouldn't trade him for anyone. He's the best overall coach in America.