If the only point of any discussion is to reach an absolute objective conclusion very few discussions can be had. It's fun to discuss such things. Even tho there's no objectively "right" answer, the same people do pop up here quite often. You can quasi-objectively make an argument for some individual players. If there was "there is absolutely no way to determine who the best player is" as you say, then Cold, shockey, killer3366 and a random white belt would all be on the "same line". That just is not the case, sure this discussion might not have a definitive goal, or absolute objectivity behind it, but to think there's no discussion to be had is wrong.