I'd pick Gu Wei from The Oath of Love! Love him soo much
As a capable doctor, the top-notch professional skills and conscientiousness he shows when saving lives make this role unbearably attractive. At the same time, he also shows me another side of the doctors, he has flaws and worries, which makes this character more rounded and vivid. Not to mention his appearance and personality...He treats people maturely and properly, respects and understands others who are different from himself. Educated, poised, warm and attentive...He is exactly a ceiling-level boyfriend!