The guy who intrigues me the most is Alabama junior QB AJ McCarron. He's already won a NC as a sophomore and has been battle hardened. He's 6'4" 210# and seems to have a bit of Brady in him.
Wes Bunting of the NFP had this profile of McCarron recently:
Nick Florence out of Baylor hasn't received much attention because he was behind Griffin, bu he set Baylor's single-game passing record when he threw for 427 yards in a win at Missouri when RG3 was out with a torn ACL.