You should check the stats before you say no one did what he did with running the ball at the QB spot before.
To me, Cunningham is the best running and passing QB the NFL has seen. You should look up his stats from 1987 to 1992. Cam Newton will become the best if he continues to improve at the rate he is.
Why do you think Vick was more athletic? Cause he's black? Cause the media told you he is? Cause defenses plan for him?
Vick isn't the only QB that defenses have had to plan around. There have been many before him, there were many during him, and there are many after him. And once defenses figured him out, he wasn't that much of a threat and a turnover machine. So much for that athleticism.
Being fast also doesn't mean he was the most athletic. If you are a threat at passing and running the ball at the QB position, that is more athletic than a 1 trick pony. As far as passing, Vick only had 1 year where he was good at passing. After defenses figured him out, he was back to sucking at throwing the ball. Any other year, he couldn't even hold Jake Delhomme's jock as far as passing.
Vick got the Falcons to the nfc championship, he showed how a fast qb whose good at running could potentially win you a super bowl. This paved the way to more people taking notice that there's more than one to be a successful qb..... And I think it's fairly obvious Vick was one of the most athletic quarterbacks of all time, I mean did you not watch him juke our guys out of their cleats