If you look back on those teams that I mentioned, games where never close. The teams in the 00's always had very close calls. The year Neb won in the mid 90's, they won every game by 25. Miami and FSU in the title days also won each game by a wide margin. The last 13 years, there has not been a title holder who can say that.
They have constantly always been in the top 5 or 10 at the end of the season. Won several BCS bowls, won a few SEC titles, and have an amazing road record (29-4 in road games under Richt). Better record in the 00's then LSU and Florida.
Oklahoma cant win a BCS bowl to save their life. I think you have to atleast win a few of your big bowls to be considered a great team.