Ji Sung - I love his acting skills and I'm always looking for his new series. The best on my list when it comes what roles he picks, how he plays and how versatile he is as an actor, but saying that...
Kang Ji Hwan - one role that is stuck in my head and how much Chemistry he has on screen in LIe to Me series. He still plays good in other dramas, but Lie to me is it for me when it comes to KJH.
Lee Min Ho - perhaps not as talented actor as others there but his smile is a killer. There is something about him that I like in most of the dramas. Personal Taste and City Hunter are my best for me.
Hyun Bin - Secret Garden was great. He is very handsome as a person as well very good actor. He also is one of those actors who don't disappoint the same as Ji Sung.
Lee Dong-wook - Loved him in Scent of a Woman and Hotel King. I love the mystery face I call him. He looks so calm, and is a great actor. For me he looks very intellectual.
Jeong Jinwoon - people think I am crazy to pick him. He did not play in too many dramas. Yes... but I liked him in Marriage not Dating. He has a gorgeous face and smile that brightens the screen. I find him very handsome because of that.
Jo In Sung - I only liked him in That winter, the Wind Blow and It's OK that's Love. Otherwise he is 50/50 for me.
Yeon Woo-jin - I like him In Marriage Not Dating, and now watching Divorce Lawyer in Love. What I like is the fact his facial expressions are entertaining, he is adorable actor. Unique in some ways because of his gestures and how he acts. I kind of like him playing different roles lately.
Jung Yong Hwa - Great singer! Good actor! Not a crazy fun, but I like him in many roles. He played very well in Three Musketeers and I like his role in You Are Beautiful. Love him singing in dramas too.