I am completely torn between the two! Matt Ryan has good potential, and RG3 can always run 2 in.
It really comes down to the Cowboys defense. If the Cowboys play good D, Ryan stinks.
The way I look at it is this : I think the Falcons will try to run the ball more - since the Cowboys corners have been playing well. Also, the Falcons need to start getting their run game going as the weather gets colder. I could be completely wrong though.
That and the fact that I think RGIII Will run\pass all over the Panthers.