Wow, great question.
Leon Hall: 5-11 1/4, 193lbs, 4.39 40.
Darrelle Revis: 5-11 1/2, 204lbs, 4.50 40.
Strengths
Leon Hall: "Very good size...A smooth athlete with fluid hips and great quickness...Physical, tough and aggressive...Does an outstanding job in run support and is a reliable tackler...A playmaker with great hands and ball skills...Very smart with excellent instincts and awareness...Is technically and fundamentally sound...Versatile and has also seen some action at safety...Hard worker with premier intangibles...Has a lot of experience against Big Ten competition...Answered questions regarding his timed speed at the Combine...Also offers some potential as a punt returner.:
Darrelle Revis: "Has good size and a solid build with long arms...Smooth and an excellent natural athlete...Plays a physical brand of football...Extremely tough and aggressive...Has fluid hips...Does a nice job versus the run...Quick and is hard to tackle in the open field...Good hands and body control...Terrific tackler...Very instinctive...Plays with a nasty demeanor...Nice balance and agility...He's also an excellent punt returner."
Weaknesses
Leone Hall: "Struggled against some top opponents...Gives a big cushion in coverage...Lacks a burst and struggles to recover from mistakes...There is some concern that he's a bit of a CB / S 'tweener...Is not a lock-down guy and will allow receivers to make some catches against him...May profile as more of a zone coverage type...#2 CB?"
Darrelle Revis: "Timed speed is good but not great...Will have lapses in concentration...Needs to work on and refine his technique...Does not have great recovery speed...Flagged for more penalties than you'd like to see...Maybe not a perfect fit for all schemes."
Notes
Leon Hall: "Terrific all-around cover guy but is not quite in the same class as guys like Deion Sanders and Champ Bailey...The Wolverines have a strong tradition of producing pro defensive backs in recent years (such as Ty Law, Charles Woodson & Marlin Jackson) and this guy will try and help carry on that legacy...Should easily be the first cornerback selected and he'll more than likely come off the board very early."
Darrelle Revis: "Nephew of former NFL defensive tackle Sean Gilbert...Didn't get a lot of attention on the national stage but quietly developed into one of the top cover guys in the college game...He's probably not going to be a true #1 shutdown guy at the next level but he's definitely a starter...Should be one of the first players chosen at his position and his ability to also help out on special teams will be a plus in his favor."
This decision is too hard, so I choose "pass"