I just watched the highlights from Darnold, Rosen, and Mayfield. Rosen definitely got "lucky" on a couple of his throws in that highlight reel, and a couple of them would've most definitely been picks in the NFL. Darnold appears to have the biggest arm between the three, but is the least accurate. Mayfield may not be the 1st QB off the board because of his height, but he will end up being the best QB in this draft.