Nightwish

Not beautiful, that's for sure.

We once made a top list of the sexiest metal vocalists, and Nightwish took the first two places. I don't remember who was first, Anette or Tarja. By the way, I like the latter more in this regard.

Although, I know, Duff McKagan... Ganse, right?

What "Ganse" are you talking about in Nightwish? :)

Anette sings well in general. It's just that on Dark Passion Play from 2007, the music wasn't tailored to her vocals, but on Imaginaerum, she sang quite harmoniously with the music.
She sings well, but it's a matter of taste, as Kosha says.