Legend of Lu Zhen (really good plus with the cutest actress as the lead.)
Battle of Changsha (if you want a very realistic drama, REALISTIC, really.)
Nirvana in Fire (full of battle of the wits, really good.. very BRILLIANT)
The Journey of Flower (i personally think there are some scene w/c doesn't make sense but idk, it still got my attention, A LOT of attention)
Lady & Liar (too cliched tho--the story line is, but will get your attention.)
Sound of the Desert (GREAT, just GREAT. it's really good--you'll love the main guy <3 )
Below are some of the dramas I (remembered) enjoyed before.
Boss and Me
My Sunshine
You should also try:
Love Me if You Dare
Scarlet Heart
(they are really popular! though personally, I didn't like both--not done with Scarlet tho)