I wouldn't say "in the whole industry." Everyone has different tastes in vocals and there are so many unique ones out there, who knows what "best" is? It's like asking what the best color is. They're all good in their own right. It just matters what you preference is.
That being said, I do like her vocals and her debut song is super freaking catchy. I'm afraid that she'll turn out to be something like G.NA for me though, in that the debut will be awesome and then the next couple of albums she puts out don't excite me because suddenly they don't know what works with her voice. Hopefully it won't work like that though.