buster c,Great find on the article!People will always disagree on how to determine these types of lists. There is no clear-cut right way, and frankly that's part of what makes them fun. In the thread, I see merit in most of the suggestions. Clearly the early years of the NFL should not be omitted. However, there is a certain logic to assigning more weight to the past few decades. Until the late 1950s/early 1960s, college football was arguably more prestigious and certainly received more press coverage. Clearly, the NFL was not the dominant sports league in the U.S. as it is today. More importantly, there were considerably fewer teams involved in defining a champion until the 1960s.Perhaps a unified approach that would both acknowledge the emergence of the modern NFL starting in the 1960s and also take into account the number of teams would be to weight the championships by the number of teams competing for them each season. For example, the 1955 Cleveland Browns would receive 12 championship points (12 teams in the league in 1955), the 1970 Colts would receive 26 championship points, the 1985 Bears would receive 28 championship points, etc.As it's not all about championships, cumulative winning percentage could still retain equal weighting for each season. There is no perfect system, as each proposed system will shift advantages and disadvantages in the direction of certain franchises. However, this approach would address the two aforementioned aspects of the emergence of the modern NFL and the large increase in the number of franchises.As always, just my opinion...