While some major conference teams spend a good chunk of their seasons feasting on cupcakes, others will be tested almost every week from September to December. We rank College Football's Top 10 Toughest 2013 Schedules.

More Lost Lettermen: College Football Cheerleader Photo Gallery

To see the complete Top 10 of College Football's Toughest 2013 Schedules, go to Lost Lettermen.

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College Football Throwback: Undefeated But Uncrowned ... The 2004 Auburn Tigers

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