From GG I don't like SeoHyun, Yoona and Hyoyeon....
SeoHyun because I really dislike her attitude, her boring Kristen-Stewart-like face and her looks, and even though she's a good vocalist, I get tired of her way easy.
Yoona is a member that I don't know what she's doing in the middle of the group. I mean, seems like the only purpose of having her in the group is just so she can look pretty and call attention of the guys.
And Hyoyeon is really limited in the group

If you see her days as a backdancer of BoA, you see she has a lot of potential to develop but in GG she is really limited and offplace...