I think Djokovic is cute but you are crazy, Berdych, Simon, Julien, Pablo, JCF, even Ryan Harrison are objectively better looking. I'd say Murray and Ferrer are sexier as well.
Of all those you said... Berdych looks decent but he's as sexy as an ice pole. Simon is just plain-looking, nice eyes and cute face, but nothing to write home about. Julien, Harrison?
Murray is sexy I admit, Ferrer cute... but none have the good looks of Djokovic.