Hm... the one I find most pleasant to watch is probably Ferrer. The guy is cool, there's no denying it.
(I can't really see if a guy is sexy or not though. But there's no other interesting threads to post in at the moment
"Certainly the most talented individual, the most well-rounded
... to play this game." - Jason Goodall
We should be appreciative of Federer though, because we will never see anything like him again. The fact he can still compete for slams ever after the erosion of his physical skills is really a greater testament to the natural talent he has than the period of time when he was dominating the tour.