Grimchuckler has already talked about this but I really wanted to talk about this too. On the AFF homepage there is a list of popular tags. Exo and bap are always on the list, nothing wrong with that. But then you notice that only certain members ever make it to the popular list. Those three are Kai, Luhan and Kris. I haven't ever seen another members trend, unless you count the KaiSoo ship, which I don't. Now in every group there are more popular members (ex:Kai, Luhan & Kris) and less popular members (ex:Xiumin, Chen and Suho). There isn't a problem in this, it's only natural. But in some fandoms (and Exotics seem to have a more even spectrum of biases) it seems like one person is a fan favorite. 

     A huge example of this is Block B. I really like Block B, the fans are hilarious when they aren't busy being emo, and the group is even funnier. But sometimes the overwhelming bias towards Zico gets a little annoying. It oftentimes seems like everyone's bias is Zico. I totally get that he's good looking and talented. But never have I ever met someone who said "My bias is Taeil.". There are tons more fics about Zico than anyone else. It seems like the other members are often neglected, especially Jaehyo and Taeil who's voices are gorgeous. Maybe being biased towards a member who isn't Zico (My bias is Kyung) has made me notice this a little more. I'm not saying we should all abandon Zico, Kai, Luhan, Kris and anyone who is popular. I just think it would be nice to give the lesser noticed members some attention too.