BP is the kind of group where, yes there's Lisa which is clearly the most popular, the other 3 isnt far behind that they could slay (in every essence of the word. May it be popularity or the path they're taking). They could stand on their own and represent the group.
Lisa (we know how lisa is doing. We dont need to mention LOL)
Rose with her highly anticipated solo debut
Jisoo with her highly anticipated drama
Jennie= the undisputed IT GIRL
BLACKPINK is the group where all the members are faces of the group. They are the literal ambassadors of Channel, Celine, YSL and Dior. Saying for example Jennie is the face of BP is saying that Channel is also, which is not the case.
BLACKPINK is more of a CONGLOMERATE: number of different things or parts that are put together to form a whole but remain distinct entities.