Well you are not correct. Do you decide the Bears were the worst team to make the Superbowl. Look at the 85 patriots. They were worse than the 2007 Bears. As far as the Patriots being the greatest Team to lose the Superbowl? Get real. The aging team was far from being the best to lose a Superbowl. Look at the Jim Kelly days of the lost Superbowls and look at their talent. Season stats and on paper personnel makes the arguably the best team ever to lose a Superbowl and it happened more than 1 time. So get off your high horse Dred and think a few years back... LOL

I remember the 85 Patriots I predicted to a Patriot fan in outside a restroom at the Hollywood dog track in Hollywood Fla. That they would loose the SB at that time also.
Most recent Bears team was a terrible team having won more of their games through sheer luck, or because the other team wanted to loose more
(Vikings/ Bears soldier feild is a great example) then anything else.
And consider this. They were 13-3 and won the NFC North.but the rest of the division was just 17-31.
NE wasnt a great team either in 85. but durig the regular season they still played better then the Bears.
And remember the 85 NE team played against the 85 Bears team. Which IMO is one of the greatest NFL teams ever fielded.
You may have a point about NE. but they still went the entire season undefeated. only to loose the superbowl to IMO a lessor Giants team (In 2007, there were 10 teams with an equal or better record than that of the 10-6 New York Giants. One of those teams was the Cleveland Browns.)
The Kellly lead Bills teams were great for sure. You could also include the 1977 Denver Broncos
Or a couple of the Viking teams.
Point is though no other team ever went undefeated only to loose the Superbowl.
I'd have to look it up. But I dont think a team with only 1 regular season loss has ever lost the Superbowl.