Pretty Boy...........monstrosity.
Paradise Farm, Orange Marmalade, Midas, The Musical, Advertising Genius Lee Tae Baek, Heading to the Ground, Marry Him If You Dare, My Lovely Girl, Big, Creating Destiny.
Prime Minister and I - Lead pairing made no sense from the start.
Witch Yoo Hee (I find Han Ga In ridiculously overrated)
Panda and Hedgehog (I just couldn't stand the acting)
Time Slip Dr. Jin....the tumor is a....really?
When a Man Loves - This is where I understood the dislike for Shin Se Kyung's acting. Though as of late she has done a complete 180 in my view.
A New Leaf.........boring.......
You're Beautiful - I also found this really overrated.......Park Shin Hye was extremely annoying to me constantly trying to act cute, and her terrible kiss scenes at the time. Like Shin Se Kyung, she has done a 180 for me as of late. Maybe I just generally don't like Jang Geun Suk, I swear he is the same character in every drama and movie.
I could name a lot more based off the endings, but I guess that would be too spoilery, though almost everything else I have seen was at least tolerable with some sort of positive.