Here's the combined winning percentage of every NFL playoff contender's opponents to date:
.546 - Pittsburgh Steelers
.536 - Indianapolis Colts
.531 - Houston Texans
.510 - Kansas City Chiefs
.510 - Seattle Seahawks
.495 - Denver Broncos
.495 - Minnesota Vikings
.495 - Washington Redskins
.464 - Cincinnati Bengals
.454 - New England Patriots*
.449 - Atlanta Falcons
.439 - Arizona Cardinals
.439 - Carolina Panthers
.413 - New York Jets
(NOTE: This does not include games that haven't been played yet, or wins/losses Thursday night and Saturday night games already played this week.)
If the Steelers make the playoffs this season, they've earned it.