1984 San Francisco 49ers

Regular season: 15-1
Playoffs: 21-10 over NY Giants; 23-0 over Chicago; 38-16 over Miami
Avg. score: 29.7-14.2
Hall of Famers: Ronnie Lott, Joe Montana (pictured, right), Bill Walsh (pictured, left)
Notable: Some like the 1989 team and its 55-10 win in Super Bowl but this offense scored more and defense allowed less.