Let's see...
The King of Dramas, The Greatest Love, Secret Garden, Scent of a Woman, Queen In Hyun's Man, Big, Innocent Man, Lie to Me, Love Rain, A Gentleman's Dignity...
Too many good dramas...
Innocent Man, Queen In Hyun's Man or A Gentleman's Dignity. Out of that list, those were my favorites, but it really depends on what genre you prefer or what your mood is. Of course all ofthe other ones were good as well!
Also, if you're looking for something from your "On Hold" list... City Hunter! You've only watched one episode so you have no idea how good the drama is, the first episode was quite boring to me, but then it gets awesome!