David Boreanaz. I've had a huge crush on him since I was 12.
Yessssssss! Definitely seconded!!!!!
He's so damn sexy. Although I'm not sure if I prefer "pretty boy" David from Buffy, or current Hunky David.
Henry Cavill, Aaron Taylor-Johnson, Mike Vogel.
These three guys always come to mind first when I'm asked this question.
Completely forgot about Mike Vogel. Probably my second favorite.