Yuusuke is the best. With his bad boy personality, his rock star looks, and his funny attitude towards different things! I think that Yuusuke is my favorite character because of his personality. I always fall for the funny/bad boy/flirt guys. Yuusuke is definitely all of them! He is a big dummy too!
You would think throughout the anime, Yuusuke would change a bit, right? WRONG! He is still his funny air headed self :P When he gets too much power, and changes into a demon, he is still himself. You can tell by the expressions on his face and everything that its still the same old Yuusuke that he always was!
Yuusuke never thinks before he acts! He does what he wants when he wants it. I am not going to get into too much detail about his personality, because thats for the personality page :P
Overall, I love everything about Yuusuke as a character, as a relationship and as a series! He will be one of my bishies for a long long time! :D