Too be honest, not that many groups I acctually know the names of the group members and know how they look like. Sure when I hear the names of Irene, Seulig and Wendy I know the belong to Red Velvet, but don't ask me to pick them out on a photo. Well, maybe Seuligi, she was my favorite at the debut.
Favorites also change from time to time, Crayon Pop was a group I changed favorite during the years.
But some favorites:
T-ara: Boram and Eun-jung, Soyeon as third.
2NE1: Minzy, but early CL was a favorite too. But 2NE1 was a group I did not really had any big bias for any member.
Crayon Pop: First Soyul, but changed to Geummi a bit more at the end. Geummi is maybe one of the most underrated girls in kpop, well, all of Crayon Pop was actually.
Black Pink: I don't gone lie, Jennie was my favorite around their debut, but that changed after their first year or so to
Lisa. But a bit similar to 2NE1, I don't really have any big favorite in the group.
Twice: Dahyun. But I must add Tzuyu for the visuals, but Dahyun as the nr 1. I had Jeongyeon as a favorite too, but maybe not so much today. Well, to be honest easier to say who is last in the list, Sanna, I think the only member in the group I don't think much about.
Apink: Eunji