The document discusses four NBA teams from different eras that could be considered the best ever: the 1995-1996 Chicago Bulls led by Michael Jordan, the 1986-1987 Los Angeles Lakers with Magic Johnson, the 1970-1971 Milwaukee Bucks featuring Kareem Abdul-Jabbar and Oscar Robertson, and the 1985-1986 Boston Celtics. It provides an overview of the accomplishments and star players of each team that made them elite championship contenders. While each team had all-time great players and seasons, the document does not definitively state which one should be considered the single best NBA team.