In NBA history, 10 players have made the NBA Finals five straight seasons.

Eight of them were in a Boston Celtics uniform in the 1960's.

Basketball-Reference's Play Index, we can look back in history throughout the playoffs to see how good James' stat line is. Let's start with players in the playoffs who have notched at least 25 points, 8 rebounds and 5 assists per game. That leads us to 33 different seasons from 19 different players with that stat line, including Charles Barkley and Larry Bird.

If we increase to all players with 10 rebounds instead of 8, we're left with 14 seasons from 11 different players, including Kareem Abdul-Jabbar. And if we create a baseline that mirrors James' line (27.6 points, 10.4 rebounds and 8.3 assists), then the list includes just one other name: is Oscar Roberston.

The historical greatness for James' playoff stat line goes beyond the box score though. From a defensive standpoint, only six players have averaged at least 25 points, 10 rebounds and 5 assists per game and had a Defensive Rating under 110. And only one other player has averaged those same statistics and had a better Defensive Rating than LeBron James has right now: Tim Duncan.

Two other things that stand out from all these comparisons is James' age and number of playoff games played in a season. Of 11 different players to average at least 25, 10 and 8, only LeBron and two others (Larry Bird and Nate Thurmond) were in their 30's. And Larry Bird is the only other player to average 25, 10 and 8 and play in the NBA Finals.

LeBron James will continue to make a compelling case for being considered one of the best players of all time, especially if he adds another ring to his collection. The 2015 NBA Finals could be one for the ages: a historically great team in Warriors facing a player that could go down in NBA history as the best ever.