Fuck the Patsies. Never have and never will be "America's Team", no matter how many more Super Bowls they pull off.
Green Bay deserves the title but they don't want it. They just want to keep being the Green Bay Packers, which if you ask me, that's the only title they will ever have. Difference between the Green Bay Packers and the New England Patriots is that, well, the Green Bay Packers have always been very well known whereas the Patriots only started to grow a fanbase sometime in the 90's and then blew up when Tommy Boy won them a Super Bowl.
The Patsies and the Cardinals are very similiar ... in that nobody gave two shits about them until very recently.
The Steelers have always been a respectable team. They earned their respect. It wasn't just given to them. They went out and earned it. SteelJake is about the only classless Steelers fan I've ever known. They deserve the title and rightfully so, but give up the fight already. There is no sense in fighting over a silly little nickname.
W2BTD is correct though. The Cowboys have always been "America's Team. If my understanding stands correct, we stole the nickname from the Steelers before they ran with it. Our marketing department played it smart and it stuck ever since. Grow the fuck up and move on.
The Green Bay Packers will always be known as the Green Bay Packers.
The Pittsburgh Steelers will always be known as the Pittsburgh Steelers.
The Dallas Cowboys will always be known as the Dallas Cowboys or "America's Team".
The New England Patriots and everyone else will always be referred to as "that team".