[JoeRedskin]

I mean, physically, it's simply not a comparison. RGIII has elite arm strength multiple sources have made that point. Same for speed. As for KC, and like Matty said, he can make the throws and has adequate physical tools to play QB in the NFL.

In terms of the mental aspect of the game, the question for me is "Can RGIII progress in pocket awareness and working his progressions?" If yes, then his ceiling is much, much higher than KC's.

As for KC, the question for me is "How much can he improve given he is already playing in a system with which he is basically familiar? Can he cut down on T/O's or is he the latest, greatest Rex Grossman?"

Each has question marks and, in light of the circumstances, neither has really had a chance to show what they can do. Between his knee and the Shanny's offense, RGIII still has a lot to learn about the position at the pro level despite all his starts. On the other hand, KC basically had a head start by playing in a pro-style offense at the collegiate level but hasn't shown he has grown from the guy he was back then.

I think they are both good guys. As Smoot said, I believe KC can have a long, journeyman career in the NFL - that's where his talent level puts him. RGIII is still a question mark, he has all the tools to be special - really special - but we just don't know yet if he will be.