I’ll start. Lowest IQ, Jordan Poole. He constantly takes horrible shots. Has bad clock awareness. Constantly over dribbling resulting in him slipping and falling on the floor.
Highest IQ, Lebron James. Anyone with basketball knowledge should already know this. He is a basketball savant. A prolific passer. See’s the whole floor and gets everyone involved. And he’s done this for over 20 years!
It’s hard to determine the player with the lowest IQ, because there are many players with relatively low IQ. But the one with the highest IQ seems like Jokic. Yes, even higher than LeBron.