This is very debatable in volleyball because every position is important to win the game. But, Hittler is considered to be the hardest in volleyball. There are two types. Outside hitter and Opposite hitter. Outside hitter is the left side hitter is considered the central point of the offense in the game. Whereas opposite hitter plates as the right side they have the same goal as the Outside hitter. The main work of both hitters is to hit the ball out of the front and back row.
Read More :- https://sportsbyte.net/volleyball-positions/