you have to qualify what you mean by top.

if by top you mean the ones with the greatest absolute skill then most peoples lists are likely wrong because a lot of older favorites would not qualify. this is due to many reasons involving how good their offenses were and in what ways, and how poor opposition may have been and in what ways.

without thinking too much ill put marino as the top top since he owned the most important numbers and didnt have the greatest team for being a QB.