And I'm gonna have to agree that Packers/Bears is a more intense rivalry. That thing has been going on since football started, practically. 
Oddly enough, I recently learned that this will be the 182nd meeting between the two teams, and only the SECOND playoff meeting. Either way, as a Viking fan, it's not exactly the NFC North Championship I was hoping for, but it is the one I expected after the Seahawks beat the Saints.