4. 1971-72 Los Angeles Lakers
When we think of the classic Lakers, the likes of Shaq, Kobe, Kareem Abdul-Jabbar, and Magic Johnson come to mind right away. But arguably the best version of the franchise was their 1972 NBA Championship-winning side. This was quite simply an extraordinary team that went 69-13 in the regular season.

They also went on an NBA-record 33-game winning streak. In short, they ran through almost everybody in front of them during a relentless campaign. Finally, they went 4-1 against the Knicks to win the Finals. To sum up, this was a classic side that deserves its place near the top of the greatest season rankings.