Not all undefeated teams are created equal.

Some (such as Texas A&M) have won road games against teams ranked in the national top 10, and others (such as Oregon) have proved their worth against the reigning Rose Bowl champion. Their records don't belie how well they've played.

For other post-Week 4 undefeateds, that is not the case.

This list is not a simple aggregation of the undefeated teams with the softest schedules. Who each team has played was one of the biggest factors, but if a team has looked dominant against inferior competition, it would not be fair to brandish it "soft."