Blue  is my answer.

Pick on based on Vocals
Male:
1.Yesung Vs Kyuhyun
2.Yoseob Vs Jonghyun(SHINee)
3.Hongki Vs Daesang
4.Junsu(2PM) Vs Junsu(DBSK)
5.JaeJoong Vs Donghae

RED is my answer.

Female:
1.Dara Vs Jiyeon
2.Bom Vs Hyorin
3.Luna Vs Taeyeon
4.Sohee Vs Yoona Vs Hara
5.Seohyun Vs Tiffany
6.Sooyoung Vs Yuri
7.Jung Ah Vs Kahi
8.Raina Vs Jung Ah
9.Gyuri Vs Jiyoung
10.IU Vs Hyorin

Green is my answer.

Dancing wise:
Female:
1.Minzy Vs Hyoyeon
2.Yuri Vs CL
3.Krystal Vs Luna
4.Victoria Vs Luna
6.Suzy Vs Jiyeon
7.Yoona Vs Sooyoung

Aqua is my answer.

Male:
1.Donghae Vs Wooyoung
2.EunHyuk Vs Yunho
3.Changmin Vs Taecyeon
4.Doojoon Vs Kikwang
5.Taemin Vs Kyuhyun
6.Minho Vs Key 

Orange is my answer.

 Looks wise:

Male:
1.Donghae Vs Siwon
2.Nichkun Vs Kikwang
3.Heechul Vs Hongki
4.Taecyeon Vs Wooyoung
5.Jaejoong Vs Changmin
6.Jaejoong vs Nichkun

Purple is my answer.

Female:
1.Suzy Vs Krystal
2.Dara Vs Bom
3.Hyoyeon Vs Minzy
4.Yoona Vs Dara
5.Tiffany Vs Jessica
6.Jooyeon Vs Tiffany
7.Sunye Vs Yubin

Brown is my answer.

Better leader:
Male:
1.Onew Vs Leetuek
2.Doojoon Vs Seungho
3.YunHo Vs G-Dragon
4.Leetuek Vs G-Dragon

Red is my answer.

Female:
1.Taeyeon Vs Kahi
2.Cl Vs Hyomin(she’s not the leader anymore XD)
3.Victoria Vs Sunye
4.Taeyeon Vs Sunye
5.Kahi Vs CL

Lime is my answer.

Maknaes based on talent:
Female:
1.Seohyun Vs Minzy
2.Suzy Vs Jiyeon(she’s not the maknae anymore)
3.Seohyun Vs Krystal
4.Jiyeon Vs Krystal
5.Minzy Vs Krystal
6.E-Young Vs Minzy
7.Seohyun Vs So Hyun

Golden Rod is my answer.

Male:
1.Kyuhyun Vs Taemin
2.Changmin Vs Taemin
3.Changmin Vs Kyuhyun
4.Seungri Vs Chansung
5.Jinwoon Vs Seungri
6.DongWoon Vs Seungri

Blue is my answer.

Pick a group
1.DBSK Vs Suju
2.2NE1 Vs F(x)
3.SNSD Vs After School
4.4minute Vs MissA
5.MissA Vs Wonder Girls
6.Kara Vs WG Vs SNSD
7.SNSD Vs f(x)
8.B2ST Vs 2PM
9.Infnite Vs MBLAQ
10.Big Bang Vs DBSK