I've only watched KDramas, but I watched my first Taiwanese Drama, 'Before we get married', and it has opened a whole new world for me. The kisses are superior, period. They kiss like real couples would, frequently and for long periods of time.

So, that's the question: which country has the best kisses? Korea, China, Japan, Taiwan, Hong Kong, Thailand, Philippines?

Maybe you should rather ask: who among actors/actresses is the best kisser? Or what are the best kissing scenes? 

The best kissing scene I saw so far was in kdrama "I'm not a robot" between Chae Soo Bin and Yoo Seung Ho.

BTS video of the scene.

In terms of me watching dramas, I watch I go with Thailand.

Taiwan - even their decade old dramas  have best kisses in my opinion. ...lately others are catching up