The Rolling Stones is my favorite rock band, but was never impressed with Watts. He wasn't very original and played the same beat (different tempo) on many Stones' hits. I always thought how a Baker or Bonham could have enhanced many Stones' songs. Think of Baker or Bonham on "Honky Tonk Woman". That song was just dying for better fills or at least double bass. Still, one of the classic rock songs of all time due to Richards and Wyman and Jagger's writing.
Watts was trained as a jazz guy. I loved him, and his contribution to the Stones.
Charlie was perfect for the Stones .