I like Orlando Scandrick, he has explosive speed and good enough size to be a starter.
The aforementioned Jack Williams is a perfect nickel corner and I think will be a steal in the fifth round.
I doubt Terrence Wheatley makes it past the fourth and the early part of the fourth nonetheless....but if he is around when JJ picks he would make for a nice choice.
As far as Branch goes, I can't help but salivate over those numbers, but he might end up becoming a better FS than corner in the pros, either way I will be shocked if he makes it out of the third. The guy is also a very good kick returner.