Maybe you will surprised with the result.. because i did..
but the things that makes Duff is too high, because even the scores not all perfect, but it's stable.. only 2 gives below 6.. and the others give 7 or 8 mostly..
it's very different with other cases (ex: Beyonce, Britney, Rihanna, etc).. I've just realized that a very low score can distract the final score so badly..
that's the explanation before you ask it..