DBSK
Main vocal
Kim Jaejoong
Main dancer
U-Know Yunho
Super Junior
Main vocals
Yesung
Kyuhyun
Ryeowook
Main dancers
Eunhyuk
SNSD
Main vocals
Taeyeon
Jessica
Main dancer
Hyoyeon
SHINee
Main vocal
Jonghyun
Main dancer
Taemin
F(x)
Main vocal
Luna
Main dancer
Victoria
(It's not officially confirmed, but SM has been pushing Victoria a lot when it comes to her dance skills)
EXO
Main vocals
Chen
D.O
Baekhyun
Main dancer
Kai
Red Velvet
Main vocal
Wendy
Main dancer
Seulgi
NCT
(It's not officially confirmed either, just based on fans' predictions)
Main vocals
Taeil
Doyoung
Main dancers
Ten
Taeyong
Jisung
I would say they're also good at picking visuals as well, but everyone has different preferences so..ㅋㅋㅋ
-Kim Jaejoong was both the main and lead vocal..ㅋㅋㅋ
-I think SHINee has a really good combination of members.. Not only with their main vocals and dancers, but the whole members in over all..
-Jaejoong was the main vocal of DBSK..? I don't know why, but I thought it was Kim Junsu..
-Everytime I look at SHINee, I can't help but admire at how perfect the combination between all of the members..
-Those pictures of SHINee's members are so freaking handsome..
-I think Ten is a really great dancer..
-You should've started by mentioning Kangta as the main vocal and Jang Woohyuk as the main dancer of H.O.T..
-Jessica is not the main vocal in SNSD.. What are you talking about..
-SM's main vocals and main dancers are amazing.. I'm into Taemin and Taeyong a lot lately..
-Kai's dancing skills made me change my mind.. I got to see idols in a whole different light because of him..
-SM really needs to push Taeil more, he deserves it..
-I personally think Taeil's voice and Kai's dancing skills are treasures..
-This makes me realize how amazing Seulgi is.. She's the main dancer of her group, but she's also a really great singer..
-I really like Chen's voice..
-I love Kai. He's not just the best dancer in EXO, I think he's the best dancer in the whole industry..