I’m surprised that anyone would have a problem answering this question in any other way: George H. W. Bush. He is a decent and honorable man. He did what he thought was right even thought it ultimately cost him re-election. When he took us to war, he did so very much by the standards that a consensus of Americans apparently support.
I am not a Republican and I never voted for him. I don’t like dynasties.
Jimmy Carter’s policies lead directly to a collapse of the American foreign policy edifice we had been building for 30 years and have labored to find a substitute for ever since. Bill Clinton was lucky and IMO is not a good man. George W. Bush is a dope. Barack Obama doubled down on too many of George W. Bush’s policies and added a dollop of catering to favored constituencies.