Nice to know there are lots of những người hâm mộ out there ^^ there are a lot of different Vocaloids, made bởi different people, used bởi different people, songs written bởi all sorts of different people. I'm VY2 Yuma, one of the lesser-used vocaloid -_-'' but bạn eventually learn there is no one person hoặc company behind the creation of us, and there are so many wide varieties that it's really hard to find a song hoặc singer bạn don't like. The fact that there are so many different people behind us means there are different tastes in songs and âm nhạc ^^ from the screamo of 'ALONE' to the sweetness of 'Hello How Are You.'
.....but to put it the short way, there really is no one answer to your question. bạn could go online and buy the Vocaloid program yourself and start creating your own songs!