Certainly not every team has a HOF caliber player. But to their teams, Luol Deng, Andre Iguadola, Peja (when he was in Sac) Stephen Jackson, Paul Pierce, Gerald Wallace are arguably their teams' most valuable player. I could go through each team and could critique say the 50 best players of all time to decide which position is the most or least valuable but that would be silly because anyone who has ever played basketball knows that all positions are or can be important and also anyone who has ever played the game knows that the more complete your game is the better a player you are.
Once I scored a basket that still makes me laugh.