[JSLTIGER]

IMHO, George S. Patton. A little nuts, definitely insubordinate, but he could do things that no other general could/would even attempt. The man was a military genius, able to do the supposedly impossible, charging 60 miles in two days to the 101st's rescue at Bastogne, and punching through the Germans like a hot knife through butter. Given the gasoline and supplies necessary, he probably could have even shortened the war, had he been allowed to proceed. He even foresaw the Soviet threat at the end of World War II (although I suppose one could argue that he contributed to the feelings of the Soviets as a threat).