Personally I prefer the vocaloid version (very, very cool programming by the way!)
Thanks!
I should make it clear that the Vocaloid is a commercial product - not related to my own attempts at vocal synthesis.
The Vocaloid program is pretty easy to use - it uses a piano roll style notation, and exports
.wav files that are easy to import into a DAW. The free Vocaloid editor that I'm using is limited to 16 bars, but that's not much of a limitation since most songs break up nicely into 16 bar sections.
Unfortunately, there doesn't seem to be any way to integrate Vocaloid into BiaB, which would be really cool.