Who Has The Toughest Schedule in College Football?

I want to make it clear that every list you'll see regarding the most difficult schedule for the 2008 college football season is entirely subjective. I took into account where those tough games take place - at home or on the road. Ultimately, I ranked the teams based on the total number of pre-season Top 25 games on the schedule and how many of those games are at home or on the road.