I'm probably really late on this but I haven't seen anything on here. (Sorry if this is a double post):
http://ncaafootball.easports.com/home.action
Should help you guess which players are going to be on which system's covers also. 360 is a quarterback obviously, and PS3 looks like a LB possibly? PSP looks like a HB and PS2 a WR? Just guessing here.
Anyways, if this has been brought up before then sorry.