I've never had much preference, since for me it's generally face, smile/hair, and personality that are important. I noticed Kibum's arms in Full House, though. Masculine and attractive, for sure. I like to see them, but...I'm fickle, I guess. I like him in sleeves, too (remember the white long sleeves post?), so that's why I say I don't have much preference. I have too much preference for both, actually. Same way with his hair...I prefer both long and short too much to say I ALWAYS like to see him with long hair. I prefer it, but...like, I also often want short hair. He's too attractive in both! What a problem!