It seems that you can take the man out of existentialism but you can't take existentialism out of the man. I was surprised to find that, on doing this test, I was 1) Simone de Beauvoir, 2) Jean-Paul Sartre, 3) Kierkegaard. I did it again and this time I was 1) Simone de Beauvoir, 2) Jean-Paul Sartre, 3) Kant, 4) Kierkegaard.
Some of the questions seemed a bit goofy, but I'm sure there was method in the goofiness. And both times, I was definitely not Nietzsche (who came in tenth).