The all whites are my favorites, by far, but we actually won only the unbeaten season Super Bowl in all whites. The victory over the Vikings a year later was in aqua tops.
BTW, I'm not sure if anyone has mentioned that the complete 1974 Super Bowl vs. the Vikings was posted on YouTube a couple of weeks ago. It is in 14 segments. Very few views so I doubt the info was posted. Provides a great feel for what that team was like in its heyday, and classic announcing crew also:
http://www.youtube.com/watch?v=8AvPNBqt1kk&feature=related