It's Oh My Girl.
The lack of respect this group gets is insane. Folks be talking nonstop on AKP, Reddit, Pannchoa, TW, YT and Insta about groups that have like 12 percent of the song quality and stage presence as Oh My Girl. Meanwhile OMG gets like 1 thread every fiscal year.
And as for best dancer in 3rd gen, no one comes close to Yooa. I watched about 100 videos of her over the past month, this girl is INSANE. She moves seamlessly between cutesy to sexy to hip hop and everything in between.
Just look at her yesterday. I made a thread a few days ago bemoaning how much weight she has lost but i cannot deny it, she looks amazing here, plus she's doing it as a literal senior citizen in Kpop at almost 29 years old.
And look at this compilation video.