Descendants of the Sun, Goblin, Hwarang and You Who Came from the Stars. They don't appeal to me personally plot-wise, and I don't really ever plan to watch them as I see myself getting bored. I feel like the hype is over-exaggerated with them.
EDIT:
I'll also clarify my reasonings with a message I sent as well:
Hwarang to me seems too much like "here's a bunch of pretty guys to appeal to the female market" but without the plot/substance to balance it out, unlike Moon Lovers, for instance where the main cast were all really good looking but the plot and character dynamics themselves were enough to keep me entertained. Lee Joon Gi also really carried the drama for me too. I certainly wouldn't have rated it so highly if it weren't for his acting.
Goblin and DotS just never really appealed to me in terms of the plots... they seemed too slow-moving, and it looked as though there was too much pining and melodrama for my liking in the case of DotS. For Goblin, the age gap also put me off because of the fact there's a centuries-old dude falling for a high schooler. Too creepy-sounding for me, not my thing.