Twice's inception was heavily modelled after a mix of Girls' Generation's approach and the everlasting trend in Kpop of loving cutesy girly concepts (from which they only started separating not that long ago).
And on the other side Blackpink was heavily modelled after 2ne1's concept and GG's commercial appeal, and even back when they were still trainees and still called pLiNKpLuNk, Yang Hyun Suk himself saying that they were YG's take on GG,
hence why even though both of which have surpassed their achievements in numbers and overseas popularity and even though they have definitely made a name for themselves and created a stage and image of their own by now, I'd rank GG and 2NE1 first and then Twice and Blackpink. Then the rest.
Because even if they've thankfully set themselves apart from the first two, their origin and early inspiration is rooted directly in the 2nd gen's top girl groups. Same goes, to an extent, about 2nd gen gg's taking inspiration maaaaaainly from S.E.S. and FIN K.L. as well as BoA