Of the 43 presidents of the United States, which have been chosen most often in these quizzes?
% as at October 2014
Source quiz: US Presidents (where choosing a surname alone awards a correct answer for both presidents sharing that surname; answers here are therefore grouped by surname, not individual).
it would be more interessant if you'd have sorted them by % not by alphabetical order (since it's the point of the quiz to know who are the most famous)
The reason it was done this way is that as you fill more names in, the alphabetical order provides a clue for the rest. You can tell the most well known names by looking at the percentage next to them.