Which one do you think was a more impressive regular season undefeated record? Obviously, majority will say the Dolphins overall season was more impressive because they won the Super Bowl.
But, which regular season record was more impressive, considering the time and free agency, depth of rosters, etc.
I wasn't born yet during the '72 run, but as I think that was phenomenal, I believe the '07 Patriots conquered a larger quest in going undefeated through the regular season than did the '72 Dolphins.
What do you think and why?