I vote 8-0. TH just has to big of an impact on the flow of any game. Not only can he single-handedly take over any drive, but he can set the psychological tone for both teams. He gets in the heads of the opponent's OFFENSE as well as their defense. The opponent's offensive players are sitting on the sideline knowing that their defense can't control TH and that does some work on their psyche as they watch their team's D get Taysom-Handled for 80 yards, either through a methodical, well-executed drive or through a 1-3 play drive that ends in a 50+ yard ESPN highlight Taysom run.
The thing with players like TH, Detmer, Steve Young, McMahon, etc is they could/can take over a game that is played with 22 guys on the field, each of which has an essential role. Being able to control the momentum of that system is VERY rare.
Basketball has a lot of guys that can take over a game pretty quickly, since all it takes is a ball-hog and a hot hand. But taking over a football game is like trying to be the soldier that single-handedly determined the outcome at Normandy.
Even more impressive are non-QB offensive players that could take over games, like Jerry Rice or Barry Sanders. And above all are the defensive players that can consistently disrupt the coordinated efforts of 11 highly trained athletes running plays that are usually specifically designed in some way to keep that particular defensive player out of the play. Guys like KVN, JJ Watt and above all Lawrence Taylor -- the most disruptive defensive player with a gift for taking over a game ever to play the game.
Taysom HIll, if he can stop getting season ending injuries, will be a take-control-of-any-game-at-any-given-time kind of player. And we will see him in Super Bowls as a result. ****Of course he has a LOT to learn about reading defenses, throwing mechanics, avoiding injuries, etc.....but he has that very special gift that makes him unstoppable when he puts his mind to it. That can't be taught. And can't be stopped.****
Thus, 8-0 is my vote.