From 1990 to 2019, the NFL playoffs included 6 teams in each conference. Here are the list of best regular season records2 for each team:
- #1 Seed record: 16-0 by 2007 New England Patriots 16-0
- #2 Seed record: 14-2 by 1998 Atlanta Falcons & 2004 New England Patriots
- #3 Seed record: 13-3 by 2011 San Francisco 49ers & 2019 San Francisco 49ers
- #4 Seed record: 13-3 by 1999 Tennessee Titans
- #5 Seed record: 12-4 by 2001 San Francisco 49ers & 2003 Tennessee Titans & 2005 Jacksonville Jaguars & 2008 Indianapolis Colts & 2010 Baltimore Ravens & 2011 Pittsburgh Steelers & 2013 San Francisco 49ers & 2016 Oakland Raiders & 2018 Los Angeles Chargers
- #6 Seed record: 11-5 by 2005 Pittsburgh Steelers & 2008 Baltimore Ravens & 2009 Green Bay Packers & 2010 New York Jets & 2013 New Orleans Saints & 2014 Arizona Cardinals
Worst records2:
- #1 Seed record: 11-5 by 1992 Miami Dolphins & 2002 Tennessee Titans
- #2 Seed record: 10-6 by 1993 Detroit Lions & 2006 Philadelphia Eagles
- #3 Seed record: 9-7 by 1990 Cincinnati Bengals & 1999 Seattle Seahawks
- #4 Seed record: 7-9 by 2010 Seattle Seahawks
- #5 Seed record: 8-8 by 1999 Dallas Cowboys & 2004 Minnesota Vikings
- #6 Seed record: 8-8 by 1990 New Orleans Saints & 1991 New York Jets & 1999 Detroit Lions & 2004 St. Louis Rams & 2006 New York Giants
Notes:
- Will add links to each team's record listed above
- Some of the answer may be out of order the source of the data doesn't include tie breakers
In terms of playoffs, the best appearance for each seed is a Super Bowl:
- #1 Seed: Super Bowl Champions, ex 2015-16 Denver Broncos
- #2 Seed: Super Bowl Champions, ex 2018-19 New England Patriots
- #3 Seed: Super Bowl Champions, ex 2006-07 Indianapolis Colts
- #4 Seed: Super Bowl Champions, ex 2012-13 San Francisco 49ers
- #5 Seed: Super Bowl Champions, ex 2007-08 New York Giants
- #6 Seed: Super Bowl Champions, ex 2010-11 Green Bay Packers
And when it comes to worst playoffs performances, all seeds have lost on the first round of their games.