http://www.footballnation.com/articles/ ... s-historic
Simply put, this IS the best defense in history, and I honestly don't understand anyone even half heartedly claiming otherwise. NO team in history has come close to replicating this type of success or dominance over this amount of time. Not the killer B's, not the Steel Curtain, not the Fearsome Foursome Rams, or the Purple People Eaters in Minnesota, no defense, pre merger, post merger, SB era, certainly not even close during the free agency offense friendly era.
You've got 1 yr teams that dominated ( 85' Bears, the Bucs and Ravens etc) but there's a REASON that that single year sits in front of their names... They couldn't sustain it, because they simply lost drive, aged, lost players, were figured out... Name something, Seattle however, HAS done so, WITH replacing players year in and year out....
It is WELL past time to give them their due, recognize their greatness, and stop attempting to place some other team ( current or past) above them. No team has been better, more consistently, longer than Seattle has. Enjoy it, relish it, acknowledge it, none of us will ever see it again in our lifetimes.