@Gyeran My personal favourite Taiwan drama is Fated to Love you. I think it's better than the Korean remake because it's less melo. However, some of the puns will be better appreciated if you understand Taiwanese. In Time With You is great too. I didn't manage to watch the Korean remake but I like how the whole drama is filmed.
K-Drama: Dae Jang Geum
C-Drama: My Fair Princess
T-Drama: Taiwan Ah Cheng (watched it together with my family because this was a loooooooooooooong drama), MVP Lovers (first normal length Taiwan drama)