User blog comment:Crazgirl/RinxLen Fans(Lovers)/@comment-5344895-20121111230403

...As of now? Probably IA, Gumi, or Yuzaki.

But out of the choices, Gumi or Rin/Len. Despite my slight complaints about about Rin/Len, I have a odd fondness of them because they were the first Vocaloids I've listened to.