The quietest one and coolest one in SNSD????

Coolest: Soo
Quietest: Seo

For me the coolest is Taeyeon
Yes,she is cool,fabalous and the best leader ever.
And the quietest is Seohyun
She is polite :)

For the coolest member is YoonA !

and

the quietest, I think Sunny ..

@.@

Coolest = YoonA/Tiffany

Quietest = Seohyun

Well the answer is:
Coolest:Yuri and tiffany
Quitest: Seohyun

coolest yuri sooyoung
quietest seohyun