(AP Photo/ Jeff Roberson)
The first time that the NFL playoff used seed was in 1975. In 57 editions of the Super Bowl, there have been 13 No. 1 vs No. 1 with the Philadelphia Eagles vs Kansas City Chiefs being the 14th time over all on February 12th.
The NFC leads AFC 9 wins to 4 wins. The current odds are Philadelphia Eagles minus 2 points vs Kansas City Chiefs.