Auburn's history is as a decent/good program with an occassional very good season. During the 15 year history of the BCS, a relative "golden" era for AU football, they have lost at least 4 games in 11 of those seasons and only have 3 10 win seasons.
In contrast, though the last 5 years have been fabulous, the first 10 years of the BCS era included 9 years of the worst 10 year stretch in Bama history in terms of losses. During that time Bama has had 7 4 loss-or-more seasons and 8 10 win seasons.
AU only has 12 10 win seasons in its history. They only have 9 major bowl appearances and 4 major bowl victories. Bama has 33 10 win seasons (tied with OU for most), 36 major bowl apearances (most) with a 21-14-1 record (2nd to USC for most).