Is Rihanna the sexiest woman alive?

According to Esquire magazine, Rihanna was voted the sexiest woman alive. While I disagree with that I want to know who you think is. My choice for sexiest woman alive is Emma Watson.
Update: Remember that this question has no right answer. Asking who is sexiest woman alive is asking someone's opinion, so it is a subjective question.

Also, I'm not saying that Rihanna is not sexy, just that I don't think she is the sexiest woman alive.
Again it is a subjective question.
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