Cobra Commander

Sure he was a total numnut who couldn't take over a day care center but the man had some MAD skills in the outfit department. Those are both great looks for a would be military strongman who has never actually been sucessful with a single plan of his. Unless like Serpentor, his own creation turned on him. Yeh I know Doctor Mindbender manipulated the genes but the idea for Serpentor was numnut's from the start.