Best Female Vocalists in Metal

In each case below, I own at least two albums with that singer. Links are to The Metal Archives for biographical info and YouTube for sample songs.

Doro Pesch (Doro, ex-Warlock)
Marta Gabriel (Crystal Viper)
Kimberly Goss (ex-Sinergy)
Nitte Valo (Burning Point, ex-Battle Beast)
Liv Jagrell (Liv Sin, ex-Sister Sin)