first of all,i have to say that yu cannot,just CANNOT compare TWO DIFFERENT STYLES OF VOICE.Traja sings on classical,opera way and Vibek sings with her natural voice! And besides that,Tarja is studying classical singing on university in Karlsruhe!
second of all,it's not okay to compare ALSO two different bands that have different genres! Tristania is the best in gothic metal,in my opinion and Nightwish is the best in their genre - symphonic metal.
Nightwish is my favorite band,besides of many,but it's still sharing it's place with tristania. I listen to them for a long long time,since 1998 and i really really love them...IMHO opinion,wishmaster is the best album (and i cannot imagine how someone can say it sucks!) - it's funny how it's so clearly how tarja's vocie is changing with every album - from good to better then to the best - although,i don't like it on once so much....
someone heard the forever moments?
that's from me