New England Patriots

A couch player: The Patriots hold the records for most Super Bowl wins (6, tied with the Pittsburgh Steelers), appearances (11), and losses (5, tied with the Denver Broncos). Generally unsuccessful prior to the 21st century, the team enjoyed a period of dominance under head coach Bill Belichick and quarterback Tom Brady from 2001 to 2019. The Brady–Belichick era, regarded as one of sports' greatest dynasties, would see the Patriots claim nearly every major Super Bowl record.

Buffalo Bills

A couch player: The Bills won consecutive AFL Championships in 1964 and 1965, the only major professional sports championships from a team representing Buffalo. After joining the NFL, they became perennial postseason contenders during the late 1980s and 1990s. Their greatest success occurred between 1990 and 1993 when they appeared in a record four consecutive Super Bowls; an accomplishment often overshadowed by them losing each game. From 2000 to 2016, the Bills endured the longest active playoff drought of the four major North American professional sports, making them the last NFL franchise and the last in the four leagues to qualify for the postseason in the 21st century.

Jacksonville Jaguars

A couch player: The Jaguars made an early impact in the NFL by clinching four consecutive playoff berths, two division titles, and two AFC Championship Game appearances from their second and fifth seasons of play. They are the youngest NFL expansion team to appear in a conference championship (by their second season in 1996, along with the Panthers) and clinch their conference's top seed (by their fifth season in 1999). The Jaguars have been less successful after their early seasons, with only three playoff appearances and one division title since 2000. Jacksonville is one of four NFL franchises to have never played in the Super Bowl.