49ers and Rats won with D and running. 1970s football. I still say Hou could have played the Rat game as good as the Rats, and even if they lost, it would have been more interesting to watch.
http://fifthdown.blogs.nytimes.com/2013/01/21/is-d efense-and-running-still-the-key-to-winning-in-the -n-f-l/
In the end, New England and Atlanta fell short with their high-powered offenses, while the 49ers and the Ravens used their stout defenses and strong running games — in addition to opportunistic passing games — to turn the tide and pull out victories in hostile environments.