All of them had good qualities, but I'm going with Ben Franklin because when I read his biography -- and particularly his autobiography -- he wasn't afraid to keep examining himself as well as others. He made a plan he felt would make him the best person possible, then tried (and failed at times) to live up to it. Highly recommend his autobiography to anyone who's not afraid of old language simply for the challenge of examining yourself this way and being able to not only admit your faults, but try diligently to correct them. His plan is one of the most effective "self help" programs I've ever seen. And he had a sense of humor, which Heaven knows we need right now.