Which of these quarterbacks will have the best career ?

well roethlisberger HAS the best career so far. counting him in that group isnt fair almost. now when were talking about recent rookies like the first 5, i would say matt ryan. hes already proven he knows how to play the position and multiple anylists from NFL network and espn like him. I called Stafford as a bust when he got drafted, flacco is just average and will prob continue to be that, sanchez COULD have the best career but theres something about the way he plays it doesnt quite match up for me. Freeman is just ehhh hell prob end up being like mcnabb, which isnt bad, but Ryan could be a brady or manning