All Joseon era dramas which are not mostly a comedy. I mainly don't like kings, ministers and other evil public officers. And also that every group has almost the same style (hair, beard, cloths...).
If my favourite actress plays in them then I both like and dislike them. :) I have then reaction similar to Kim Min Kyu from I am not a robot (Except that skin effects). When I see a king, my angst level is increasing, when I see my favourite actress, the angst level drops to zero. :)
Historical Dramas that I both like and dislike:
Rebel
Love in the Moonlight
The Tale of NokDu
Others that I don't like:
Are you human too? - too annoying villains