Does Saban have an argument for being the best ever?

I saw a thread from another board that gave a convincing argument he might be. I certainly think he's the best since the Bear.

1) Saban has won three national championships in the last seven years at two different schools.

2) He's won three national championships coaching in a league that is widely considered the strongest football conference in the country by far.

3) All of his national championships have come with average QB play (Mauck, McElroy, McCarron). McCarron will probably be really good in the upcoming years but he certainly showed bouts of inconsistency throughout the season.

4) He has won all of his championships in the BCS era where a #1 vs #2 matchup is practically guaranteed. Even in 2003, Oklahoma was at worst a top 3 team. Until 1992 that was rarely the case. For example Miami got a share of the national championship in 1991 by beating #11 Nebraska in the Orange Bowl. If they were playing in the BCS era, Miami would have played Washington for the national championship.

5) Every recruiting class he has had since coming to LSU in 2000 has experienced a national championship.

6) He's coaching in an era with far greater parity. In the last four seasons alone, we have seen seven schools from a non-BCS conference finish in the top 10. Something like that would have been unheard of not too long ago.