Who was better vocally? Stevie or Christine?

[Mokona]

So I was listening to the Mac tonight in my car and I thought of this. Stevie has that husky vibratto and Christine has that smooth as velvet sound, so as far as vocal abilities go, I kind of think Christine is a bit better.

I favor Stevie in almost every way, but mostly because her music and sound are so unique that I enjoy listening to her much more, but I can't deny that Christine has some seriously smooth pipes.

What're your thoughts?