I think that all three of these guys are going to be gone by the time the Chiefs pick in the top of the second round. The Chiefs should have a potential pick between Poyer and David Amerson.
People are forgetting that Amerson was absolutely brilliant in 2011 when he led the NCAA's with a remarkable 13 interceptions. He tried too hard to equal that in 2012 and got caught a lot trying to get in-between the receiver and ball versus just playing the receiver. However, size and skill set wise, Amerson is easily on the same level as these three guys.
IMO, I think that Amerson, Milliner, Rhodes and Banks are near clones of each other and all will be pretty damn good CB's on the next level, especially if you are the Chiefs and are looking for a complimentary press coverage guy playing opposite of Flowers.