User blog comment:SFZ2/I Need Some Help/@comment-3076833-20130731214803

I'd honestly suggest looking more into what you're actually going to do with them; as in what songs you're going to make them sing, and then pick the one that fits best. Having a Vocaloid that's easy to use is fine and all but pretty useless if it doesn't fit the songs you want to make it sing. And there's plenty tutorials out there on VO and the likes to help you overcome a Vocaloid's problem.