The most underrated in kpop?

I think one individual is Cho Kyuhyun. I mean, most people know Super Junior, but when I say Kyuhyun a lot of people say "Wait... who?" But it's not just recognition. People that know he's in Super Junior think he's just a member of a pretty boy dance group, when he actually has an absolutely beautiful voice! He has so much talent but he is never really the "front man" of the group. He played in a musical, sang drama OSTs, and is a great ballad singer, but many people don't know that.