I thot Mac was awesome. I have mentioned this before, so I apologize, but from the sideline where I watched most of his games, his ability to read and predict and avoid was uncanny.
As a side note I still remember the bear's game where he was out because of injury and his backup was doing poorly. So after harassing Ditka for some time, he finally got to go in. In four passes through three possessions he threw 3 TDs and put the game away. It was incredible. The 3rd pass was for a large gain followed by the 4th for the 3rd TD.
In response to the heading, I got a chance to talk to most of the backups at the spring thang, and I was amazed at Munns. The guy is big and built. He had braces on both knees. Covey was rather small. But in my years of experience, the most important thing of all for a byu qb is moxie. That item was not readily available. If Munns can put it together, he would be my vote, based on what I saw when they were all in a line with the kids and dropping back and just tossing the ball. Of course, there is so much more to it than that, but wow, Munns looks like he is a real athlete.
Personally, I hope covey makes good, just because of the brains aspect. He comes from heredity.