Point guard is one of the most significant positions on the floor in the NBA. Shooting guard, small forward, power forward and center all carry great importance as well, but having a point guard that's able to lead your team could put you at a supreme advantage over your opponent.
The point guard is designed to be the general of the floor. He's the one that dictates the tempo, rhythm and flow of the offense and makes the offense work. Without a point guard that has the responsibility of seeing the court better than anyone else on the court, offenses will find themselves out of rhythm many more times than a team that relies on a shooting guard or a small forward to lead the offense.
On defense, they carry just as much importance, as they're meant to use their agility, quickness and timing to either use their quick hands to stop a possession before it starts or to intercept the ball in the passing lane to start a fast break. They're part of the first line of defense, and they're meant to disrupt the opposing point guard to the best of their abilities as not to allow the opponent's offense to find a rhythm.
A number of the greatest athletes have run the point, and these 50 point guards have earned themselves a spot among the 50 best 1-guards of all time for their individual achievements, overall games and how they have impacted the teams they've been on.