I found something interesting on the porn server a few days ago.
(Perhaps I should explain. The porn server is a depository for prepints of physics and math papers - the nickname comes from its original URL, xxx.lanl.gov. Although you can now access it from other addresses, as it would often get blocked by spam filters in government labs.)
Anyway, I came across a paper from 2004 out of Georgia Tech attempting to achieve BCS level rankings using the simplest criteria available. Computer monkeys pick a team at random, then a game at random, and switch from their team to its opponent if their team lost, most of the time. And then repeat ad infinitum, until the rankings fall out.
The advising professor behind the work is now at UNC, and his work is therefore exponentially better. He has a webpage on his work, including rankings for the past three seasons. So if you want to argue 2003 or 2004 with a bunch of monkeys, or see exactly where UNC fell in those years, this is the place to go.
Conversely, if you just want to fake your own rankings system, try here.