its suppose to put the best, highest scoring with givin the least amount of points up. longest drives, and what not. doesn't work the way it should though. the BCS is all kinds of fucked up, but unfortunately, the BCS standings are the only ones that matter. AP polls only matter when the BCS isn't up. cause you look at them now, Utah is #2 on the BCS and 4th in the AP. and USC is ranked #2 in AP and #3 in BCS.
its seriously all kinds of fucked up.
this explains how the BCS is setup. read it, and you will know why its the way it is.
http://www.collegefootballpoll.com/bcs_explained.html