We've seen all sorts of college football rankings from the AP poll. to USA Today to good 'ol power rankings.
↵Now here's a different twist on it all. ESPN.com has ranked all of the college football conferences.
↵The Big 12 comes in fourth behind the Pac-10, Big Ten and SEC.
↵↵↵We created this system to grade conferences based equally on two key components, the quality of the upper tier schools AND the depth of the conference.
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The Big 12 isn't that deep with Texas being knocked out of the top 25 the last two weeks but Mizzou and OSU continue to rise.