It's impossible to definitively say who has the "fairest" skin in BTS, as beauty standards are subjective and skin tone varies depending on factors like lighting, makeup, and individual preferences. However, some members are often perceived as having lighter skin tones than others.
Jin is often mentioned as having a fair complexion, and he has spoken about taking care of his skin.
V also has a fair complexion, and he has been described as having "porcelain skin."
Jimin is known for his smooth and clear skin, which is often described as being "fair."
Ultimately, each member of BTS has their own unique beauty, and it's important to appreciate their individuality and diversity.