Sales-wise, G-Dragon's sales are actually on par with Big Bang's, while the other members never cracked 100k. However, T.O.P never really had a full album by himself (cmiiw), and Daesung only released Japanese albums (again cmiiw). So, there's still a doubt in that.
However, I wonder how big the popularity gap between them is. Is Big Bang situation similar to Wonyoung and Yujin with Ive, where the top two members overshadowed everyone else in the group (Ik BB members are obviously more well-known among the public)? Or is it like the Blackpink situation where Jennie and Lisa are obviously more popular, but the others are not really far behind? Or is it like Cha Eunwoo and Astro (obviously not as severe as that), where he is the face of the group, the only one that the public cares about the most, and the other members basically didn't come close to his individual popularity, and no one in the group comes close to second in terms of individual fanbase and recognition like him?
I never stan them, so I just curious how the group dynamics when they were on their peak especially.