Don,
Outside of the Steelers, my all-time favorite match-up in the Super Bowl would be Minnesota vs Buffalo. It's almost criminal that each has been there 4 times with nothing to show for it.
When we were kids, one of my friends loved the Vikes - the Purple People Eater version with Alan Page, Carl Eller, Fran Tarkenton, etc. Another friend liked the Dolphins but, for most of us, it was "the Stillers".