John Tyler, Millard Fillmore, James Buchanan, and Franklin Pierce all say hi.
Nah, Woodrow Wilson has long been the traditional answer on here (and indeed across much of the political internet). Those you mention are probably regarded as lesser presidents than him, but Wilson has always received the greatest amount of open hate. It helps that he generally ranks quite highly in historians' presidential rankings while those others are consistently near the bottom, hence it's much more fun to bash him.
