My all time favorite Drama is Goblin. I would say this is the best of all the Korean dramas that I have watched.
Selection of cast is really amazing, exactly matches their characters in the drama. This is not just the leads every single role played by every cast in the drams is perfect.
Music is awesome. Both songs and the background music is too good.
Graphics was also good.
This drama includes every genre available. I can keep watching it.
Untamed is my favorite Chinese Drama and Goblin is my favorite Korean drama.
I want to thank the directors for producing such nice dramas for us to binge watch. Thank you.

I like watching dramas that come under the fantasy genre :)