I still love both Generals and would rank Washington #1 and Patton #2 as far as American Generals go. I also had ancestors who fought under both men.
I agree. You could not find two more opposite men in temperament in many ways.
Washington, the icy, calm exterior, fighting constantly to keep the emotional beasts inside him from getting out. He was, by all accounts, a passionate man about many things who struggled not to let people ever see it.
Patton, who liked letting his emotional beasts run wild, both as a matter of personality, and as a player on a stage or a general trying to make a point, but harboring an inner calm area that he presented as a shell and used as a tool.
I do believe Patton did have brain injuries that contributed to his wild mood swings, particularly from the kick to the head he got from a polo pony.
But both great men who rose to the occasion when needed, and both had vision of what they had to do. (Of course, Patton also had memories of what he had done thousands of years before...:)