I love Floors work with AF and even her ReVamp material. Hell I love to hear her sing classical pieces but as much as I love her even I have to admit that Tarja made Nightwish and nobody can replace her not even Floor. Getting back to Anette I never really enjoyed her albums with Nightwish however if you want to see her shine you should check out the song she did with Swallow The Sun.
Swallow the Sun - Cathedral Walls - YouTube