I'm confused, this looks like you're talking about margin of victory or something. I'm talking about what the defense has allowed. That said, by the breakdown you listed (granted from Sagarin), both ND and Alabama played 2 top 10 teams and two top 75 teams. The biggest difference between their schedule is that Notre Dame played 3 top 11-25 teams while Alabama played 2 of those. A little of that difference being made up by Alabama playing two top 100-149 teams, while Notre Dame played 2 of them. Going by that breakdown, there's not a huge difference in the two teams' schedules and, as I said before, is probably not enough to close the gap on the actual statistical advantages Alabama's defense holds on ND. I'm not calling Sagarin infallible at all (in fact, I'm generally pretty skeptical of the computer rankings), I simply used Sagarin because all the rankings are subjective and he's a pretty credible subjective guy.