There are, however, certain presidents that have established themselves as important figures, despite partisan viewpoints. One may disagree with the policies of Ronald Reagan or Franklin Roosevelt, but denying their importance in the history of American politics would be difficult to argue. We’ve compiled a list of the 25 most revered presidents in the history of the United States. The list comes from an aggregation of 17 surveys conducted over the last 60 years, each one rating the presidents according to their importance.