If College GameDay analyst Kirk Herbstreit had his choice of first-round quarterbacks, Oklahoma's Baker Mayfield would be the first player off the board in next week's NFL Draft.

Herbstreit, who is joining ESPN's wide-ranging NFL Draft coverage for the first time in place of Jon Gruden, ranked the four signal callers at the top of everyone's lists during a media conference call on Tuesday.

"I know a lot of people are enamored with Josh Allen and his arm strength and we’ve heard a lot about Sam Darnold, but I've got Baker Mayfield as my top guy," Herbstreit said. "It has everything to do with accuracy and decision-making. I’m kind of guy who always goes back to decision-making and accuracy and Baker Mayfield to me is off the charts in all those areas.

"If he was 6-3, people would be marveling at this kid. He played behind as big as an offensive line you’ll ever see in the NFL and he had no problems whatsoever. He reminds me of a young Drew Brees."

Herbstreit called several of Mayfield's games during his Heisman-winning senior season and says he's never questioned his stature in the pocket.

"You can get scared off of him because he's not tall, but I'm not caught up in how tall he is and to me, that's why Baker is at the top of my board," Herbstreit said.

USC's Sam Darnold is right behind Mayfield as the draft's second-best available quarterback.

"He may have the most upside four, five or six years down the road," Herbstreit said. "I think he’s still raw. He could’ve used another year in college to grow in some areas. He’ll make so many flash plays that will make you marvel at how good he is, then he’ll do some things that show some immaturity, like leaving the pocket a little early.

"I'll be shocked if Sam Darnold hasn't established himself as a really good NFL quarterback three or four years from now."

Herbstreit puts UCLA's Josh Rosen third and Wyoming's Josh Allen behind him with a first-round grade.

"I agree with a lot of the analysts out there on Rosen — when everything is clean, the kid is going to make the right decision 9.5 or 10 times out of 10," Herbstreit said. "My one concern is that when he gets pressed, he’s not quite as comfortable as some of these guys. And Josh Allen to me, he could be a superstar. He could be the Carson Wentz of this draft, no one really knows.

"He’s a hard one for me to personally evaluate because he’s coming out of Wyoming, the Mountain West."