Krystal

Gong Myung or Seo Kangjoon (even though they haven't been active as idols for a hot minute)

Seo Kangjoon!

Vocals - BTOB Eunkwang or Super Junior Ryeowook?

 BTOB Eunkwang  

Kpop Visuals - Mark (GOT7) or Chanyeol (EXO) 

That's hard. I have a soft spot for Chanyeol so I'll choose him.

Vocals: Baekhyun or Chen (EXO)

baekhyun

blackpink's boombayah or duddu-duddu?

the only bp song i like is forever young so i can't choose

infinite's sunggyu or woohyun (as vocals)?

Woohyun

Taeil or Doyoung (NCT vocals)

I think Doyoung

Sooyoung or Hyeoyeon (SNSD) in terms of rap?

sooyoung

taeyang /sf9 or taeyang /bigbang?

Taeyang(Big Bang)

Suga(BTS) or Yongguk (B.A.P) in terms of rap

I like both a lot but I think Suga wins by a margin

Taemin (SHINee) or Ten (NCT) in terms of dance?

i'm a nctzen and i love how ten dances and all, but honestly, taemin is the best dancer in the whole kpop  industry, i couldn't choose no one other than him

exo's rap line or vocal line?

Vocals for sure. As much as I like all the artists, NCT is the only SM group with standout rapping for me - vocals and visuals are definitely their stronger front.

Seungmin or Woojin (Stray Kids vocals)?

that's pretty hard, but i will say woojin because he was the first vocal i was able to recognize

hyolyn or soyou /sistarvocals ?

Hyolyn

Minhyuk (Monsta X) or Minhyuk (BTOB)?