15. 2013-14 Miami Heat
The Heat was on fire this year with an explosive front three of LeBron James, Chris Bosh, and Dwayne Wade. They went 66-16 during an outstanding season that saw James pick up his fourth NBA MVP award. His individual records and the Heat’s overall form make them one the league’s greatest-ever teams.
During the year they embarked on an epic 27-game winning streak and looked unstoppable. First of all, they became the first team since the Bulls in the ’90s to “three-peat” as Eastern Conference champions. Then they went on and won the championship, beating the San Antonio Spurs in seven games.