Who is your favorite lead in romance/romantic comedies?

I asked about action movies the other day and now today it's all about romance!
Who is your favorite actor/actress to see in a romance movie?
I have to admit, I love seeing what Drew Barrymore does in those kinds of movies like Never Been Kissed and 50 first dates.
So how about you? Also, if you don't like romance/romantic comedies, that's fine too. Maybe the next question will be for you.

Who is your favorite lead in romance/romantic comedies?
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