I watch Korean, Chinese, and Japanese dramas; the least of which is Japanese. In some ways it almost doesn't seem fair to judge many J-dramas on the same scale as the other 2, the quality and style never seems on par. I have a low tolerance for low-budget, and these days there is really no need to settle.
I detest revenge and angst-filled dramas with excessive jealousy, misunderstandings, etc. They just feel like a waste of my time. I want to release dopamine when escaping into dramas, not cortisol and adrenaline. The exception obviously has to be made for Chinese vertical/web/mini dramas (of which I've fallen into a black hole, IYKYK) because apparently I don't value my own sanity, LOL