I'm with Mikey on this one.
Elway was such a great combination of mobility and traditional passing QB that he's harder to assess than the more stationary guys who simply shred defenses from the pocket.
A thoroughly legitimate Hall of Famer, and like Fran Tarkenton and subsequent mobilers, not given enough cedit for what he made happen with that kind of intuitive knowledge of when and where to run. That is a kind of mental processing that also indicates an understanding of the chess game nature of the playing field.
So it may be Elway had the absolute HIGHEST QB I & I of ALL of them. He'd rank pretty high on that QB rating system Aikman developed - the one that takes into consideration the multifarious ways QBs contrinute to the gam today.
But from the pocket, in sheer read and react time, ability to put the ball where it needed to be, and make consistently spot-on (no, I'm not Nors) judgments, he seemed to me to be somewhat less rapid a processor or quick a deliverer as a Marino, Namath, Montana.
Or an Aikman, for that matter.