haha, maybe I'll put together a "worst" list sometime in the near future
I LOVED the 85 Bears, but I felt they were unfair to include into the list because they were technically an "All Time Team" in Madden. All time teams are naturally going to dominate, so it wasn't a level playing field.
The Lions were better in Tecmo Super Bowl than the Niners in my honest opinion. Mel Gray was the X factor and basically would take any kickoff/punt back for a touchdown. Add this to Barry and the Lions dominated on the ground.
The Niners were no slouch, I just don't think they were that good considering some of the other teams in the Tecmo series. The Oilers, Chiefs, Redskins, and Bills were all just as good as the Niners. The Raiders and Lions were the two teams that stood out most to me.