Totally K-On is the best, no doubt..

i`m confuse T_T
both of them is so cool!

yep yep

K-ON! the best!!!

Vocaloids not have their own Fanpop site? K-ON for the win here! (^= ^ )

K-ON!

K-ON!it's number 1!!!!

Both Of them becuse I love their songs

Both Awesome ♥
Yui and Rin - Kawaii
Mio and Miku - Cool
Ricchan and Len? - Hmm
Mugi-Chan and Luka - Beautiful
Azu-Nyan and Kasane - Cute

Vocaloid = I love their character design, and their songs
K-ON! = love love love! Music and character ~

So, it was a haard choice! And I pick both :3

I like both,but I think Vocaloid actually wins,because Vocaloids are real idols,voiced by pro seiyuus,but K-ON is an anime,with great story...so both :3

I love both!:)

Both!

I haven't seen Vocaloids yet... It's a difficult anime to find over the net.

K-on! forever!!! XD

@blackpanther: its not really an anime...they're just those...how can i say this?...robotic voices? i dont know,i've heard Night Core though,some of the songs of it