Why would you not count the two AFL championships? Until Belichick and Brady arrived the Patriots never won anything. The Red Sox went 86 years without a championship. Almost half of those 35 championships were the Celtics, a dynasty that hasn't existed for years. Boston has four major sports franchises, Buffalo has two. Red Sox founded 1903, Bruins in the 1924, Celtics 1946. Not a very good comparison.