There are too many awful QB's to list that have won or played in the SuperBowl. Yes I agree these four are amazing and three make the HOF. No different than when Elway, Montana, Kelly, Young, and Marino where playing. Except three of those guys couldn't win the game when they were the focal point of their offense. In fact you can make a nice parallel to today. Elway is Roethisberger now reliant on a running game. Rodgers and Brady are Young and Montana. Ryan is Marino with a ton of yards and zero to show for it.
There are lots of ways to win in this league. Sign me up for a superstar QB just for the pure joy of watching them play for the Bills week after week. Until they draft that guy, all I care is winning and competing in the playoffs.
Even an average defense gets the Bills to the divisional round of the playoffs this past year.