Tough call, but I'd have to go with the undefeated season. Loads of pressure. Essentially, the pressure the Colts have right now will double over each week the rest of the season, all the way to the SuperBowl, presuming they get there.
The Patsies streak is amazing by all means, but a Colts undefeated season in this time of parity would beat it by a nose.
