I'll take a shot at it.
Matt Barkley: Andy Dalton
Geno Smith: Warron Moon (But a pinch more athletic? Struggling to come up with something)
Mike Glennon: Joe Flacco
Tyler Bray: Jeff George (couldn't agree with this one more)
EJ Manual: Dante Culpepper (easy comparison)
Tyler Wilson: Aaron Rogers (but with a slightly less arm.)
FYI (hate that all my comparisons are white player resembles white guy. Black player resembles black guy. Not my intention)