Based on their opponents’ 2006 winning percentages, the Buffalo Bills and Oakland Raiders have the toughest schedules to play in the 2007 NFL season. This hardly seems fair since the Raiders were the worst team in the league a year ago. But, such is life in the AFC West (Chargers, Broncos, Chiefs). As for the Bills, well — they aren’t exactly playing in an easy division, either (Patriots, Dolphins, Jets). So, who has the easiest sked? The Arizona Cards. I told you the Cards are going places in ’07. Check out your favorite team below.