Based on the statistic I discovered last year, that stated that 10 of the past 11 Super Bowl winners were the team that had a more balanced offensive attack, it shows that whichever team represents the NFC this year in Detroit, has a 91% chance of winning based on that same stat.
52% run, 48% pass
52.3% run, 47.7% pass
53.8% run, 46.2% pass
59.2% run, 40.8% pass
Now this balanced offense stat has little influence on a team actually making it to the Super Bowl, as in past years there have been several "one-dimensional" offenses (i.e. those that run or pass at least 55% of the time) that were in the Super Bowl. But unless they are playing a team that is even more one-dimensional than they are (as was the case with TB vs. OAK), they probably won't win.
For those interested, the lone exception to this rule was the Rams, who were less balanced than the Titans when they beat them in 1999.
You can see all the stats from this old thread: http://www.falcfans.com/forum/viewtopic.php?t=433