Too personal. But I'll say... Trump, Obama, Bush, Clinton, Bush, Reagan, maybe not Carter or Ford. But Nixon? Certainly. Johnson and Kennedy? Yes, and YES! Eisenhower, Truman, and Roosevelt. Hoover? Not so much. If anything, people called Hitler Hoover rather than vice versa. And no, I'm not being funny. Well, maybe just a little bit.
Funny story, they actually called Hitler "Napoleon".... Oh man, did he not like that. But screw 'em. He was Hitler.