tie between Soo and Sun for me :) but Soo is a little little bit better.

Sunny- I think because of IY we see more of a comedic side of her then normal
Sooyoung- naturally funny at times I guess
Yuri- I think when she isn't trying she can be funny
Hyoyeon.- more or less

Sooyoung is naturally funny.
Sunny is also funny but I don't really like her cutesy at times.
Hyoyeon is sometimes too funny that it gets weird :D

i choose soo..

and yuri i really addicted of their moments together they r great couple

:)

Invisible youth brings our the comedian in you

Or Sooyoung