I can't choose just one. So I'm going to pick two, each from a different anime. Starting off with D.Gray-Man: As much as I LOVE these three, I'm totally crushing on the adorable Lavi and all his piercings. Allen and Kanda have piercings too, but Lavi has more and, well, he's just adorable!
And of course, I am always crushing on Gilgamesh and all his gold. And I'm not even a huge fan of gold. But damn, he sure makes it sexy.