Lots of really great points on all the QBs mentioned above. While I agree that Colt could ride #1 if he leads a team to his own NC, maybe even just a couple of conf. titles could sub for the same value, combined with his apparent trajectory up the stat and record books - Colt just might be considered the best.
However.
The thing that Vince has that you just can't take away or undervalue. The absolute storybook perfection in which Vince did his thing. He took complete control of the ship, told the whole of Longhorn nation to get behind him, follow him, the magic will follow. So many nationally televised moments of VY simply willing his team to victory. And then. On the brightest stage in recent CF history, a stage so huge and storybook there is wide sentiment across the landscape that it was not just the single greatest performance in the history of college football (ask Keith Jackson), but the game itself is up there as the greatest game ever played - those 2 things in the whole of college football - one man was the conductor
That. is why VY could remain the most untouchable. The visuals alone from that game, the ones we now have labeled in our brains as The Return to Glory, those belong to Vince Young. His transcendence continues far into the future and he simply cannot lose.
Colt McCoy is still such a great storybook Texas QB name, however. And he sure does have a shot... And to think of the shoes filled, in his own way, sure, but damn what a task and he damn sure could pull it off... We'll see.