As I think back and match in my mind various presidents with their contemporanaous English monarchs, it really is unclear which system is producing better leaders. I mean, Elizabeth II easily beats Eisenhower, Kennedy, Johnson, Nixon, Ford, Carter, and Clinton. She gets beaten by Reagan and this Bush, and barely by the first Bush. And I'd take Edward VIII and George VI over Hoover, FDR, and Truman any day. George V clearly had a leg up on Wilson.