Here's a popular debate in Western NY.
Which is more of an achievement?
1) Going to 4 straight Super Bowls but losing all 4 (including 3 where you failed to compete for more than a half of the game). Something only one team has ever done.
2) Going to 2 straight and winning both, achieved by multiple teams.
3) Going to 3 straight and winning 2. (I always added this to the mix because people forget that the Miami Dolphins did this in the 70's) Losing to Dallas , beating Washington, beating Minnesota
Now to start you have to admit each of the three is in itself is an accomplishment.
Being a Dolphin fan I always went with #3 as the best , especially when you add in going 17-0 when playing most of the season with your back up QB. Then winning two straight. Then going to 4 straight (remember this also occurred at the midst of a 13 year streak where the AFC did not win a Super Bowl and really it was 15 out of 16 they did not win) and losing them all.
Now to be clear I am not calling those Dolphins the greatest team of all time, I am just saying in terms of this discussion, their achievement comes out on top, at least in the eyes of a Dolphin fan.