Most successful AFC team since 1985...very long read
 

1985
Denver Broncos 11-5 no playoffs

New England Patriots 11-5 Wildcard qualifier
Wildcard
New England Patriots 26 New York Jets 14
Divisional Playoffs
New England Patriots 27 L.A. Raiders 20
AFC Championship
New England Patriots 31 Miami Dolphins 14
Super Bowl
Chicago Bears 46 New England Patriots 10

1986
New England Patriots 11-5 Division champs
Divisional playoffs
Denver Broncos 22 New England Patriots 17

Denver Broncos 11-5 Division Champs
Divisional Playoffs
Denver Broncos 22 New England Patriots 17
AFC Championship
Denver Broncos 23 Cleveland Browns 20 (OT)
Super Bowl
New York Giants 39 Denver Broncos 20

1987 (strike year)
New England Patriots 8-7

Denver Broncos 10-4-1 Division champs
Divisional playoffs
Denver Broncos 34 Houston Oilers 10
AFC Championship
Denver Broncos 38 Cleveland Browns 33
Super Bowl
Washington Redskins 42 Denver Broncos 10

1988
Denver Broncos 8-8 No playoffs
New England Patriots 9-7 No playoffs

1989
Denver Broncos 11-5 Division champs
Divisional playoffs
Denver Broncos 24 Pittsburg Steelers23
AFC Championship
Denver Broncos 37 Cleveland Browns 21
Super Bowl
San Francicisco 49ers 55 Denver Broncos 10

New England Patriots 5-11 No playoffs

1990
Denver Broncos 5-11 No playoffs
New England Patriots 1-15 No playoffs

1991
Denver Broncos 12-4 Division Champs
Divisional playoffs
Denver Broncos 26 Houston Oilers 24
AFC Championship
Buffalo Bills 10 Denver Broncos 7

New England Patriots 6-10 No playoffs

1992
Denver Broncos 8-8 No playoffs
New England Patriots 2-14 No playoffs

1993
Denver Broncos 9-7 Wildcard qualifier
Wildcard game
L.A. Raiders 42 Denver Broncos 24

New England Patriots 5-11 No playoffs

1994
Denver Broncos 7-9 No playoffs

New England Patriots 10-6 Wildcard qualifier
Wildcard game
Cleveland Browns 20 New England Patriots 13

1995
Denver Broncos 8-8 No Playoffs
New England Patriots 6-10 No playoffs

1996
Denver Broncos 13-3 Division Champs
Divisional playoffs
Jacksonville Jaguars 30 Denver Broncos 27

New England Patriots Division Champs
Divisional playoffs
New England Patriots 28 Pittsburg Steelers 3
AFC Championship
New England Patriots 20 Jacksonville Jaguars 6
Super Bowl
Green Bay Packers 35 New England Patriots 21

1997
Denver Broncos 12-4 Wildcard qualifier
Wildcard game
Denver Broncos 42 Jacksonville Jaguars 17
Divisional playoffs
Denver Broncos 14 Kansas City Chiefs 10
AFC Championship
Denver Broncos 24 Pittsburg Steelers 21
Super Bowl
Denver Broncos 31 Green Bay Packers 24

New England Patriots 10-6 Division Champs
Wildcard game
New England Patriots 17 Miami Dolphins 3
Divisional playoffs
Pittsburg Steelers 7 New England Patriots 6

1998
Denver Broncos 14-2 Division Champs
Divisional playoffs
Denver Broncos 38 Miami Dolphins 3
AFC Championship
Denver Broncos 23 New York Jets 10
Super Bowl
Denver Broncos 34 Atlanta Falcons 19

New England Patriots 9-7 Wildcard qualifier
Wildcard game
Jacksonville Jaguars 25 New England Patriots 10

1999
Denver Broncos 6-10 No playoffs
New England Patriots 8-8 No playoffs

2000
Denver Broncos 11-5 Wildcard qualifiers
Wildcard game
Baltimore Ravens 21 Denver Broncos 3

New England Patriots 5-11 No playoffs

2001
Denver Broncos 8-8 No playoffs

New England Patriots 11-5 Division Champs
Divisional playoffs
New England Patriots 16 Oakland Raiders 13 (OT)
AFC Championship
New England Patriots 24 Pittsburg Steelers 17
Super Bowl
New England Patriots 20 St. Louis Rams 17

2002
Denver Broncos 9-7 No playoffs
New England Patriots 9-7 No playoffs

2003
Denver Broncos 10-6 Wildcard qualifers
Wildcard game
Indianapolis Colts 41 Denver Broncos 10

New England Patriots 14-2 Division Champs
Divisional playoff
New England Patriots 17 Tennessee Titans 14
AFC Championship
New England Patriots 24 Indianapolis Colts 14
Super Bowl
New England Patriots 32 Carolina Panthers 29

2004
Denver Broncos 10-6 Wildcard Qualifier
Wildcard game
Indianapolis Colts 49 Denver Broncos 24

New England Patriots 14-2 Division Champs
Divisional game
New England Patriots 20 Indianapolis Colts 3
AFC Championship
New England Patriots 41 Pittsburg Steelers 27
Super Bowl
New England Patriots 24 Philidelphia Eagles 21

2005
Denver Broncos 13-3 Division champs

New England Patriots 10-6 Division Champs
Wildcard game
New England Patriots 28 Jacksonville Jaguars 3

Super Bowl Wins
New England Patriots 3
Denver Broncos 2

AFC Championships
Denver Broncos 5
New England Patriots 5

Divisional Crowns
Denver Broncos 7
New England Patriots 7

Playoff wins
New England Patriots 16
Denver Broncos 14

Overall wins including playoffs
Denver Broncos 220
New England Patriots 191

If I'm wrong somewhere please correct it

http://www.pro-football-reference.com/

For the life of me I couldn't remember what the Broncos record was in 1990. 5-11? I must have erased it from my memory. Really, can't remember anything about that season. Usually I can recall a game or two from every season from 1978 and on but 1990 is just not clicking.