I checked out her classical stuff and... not for me!!! I can understand why and that some people may dig it, but I couldn't do it.
As far as her 3 rock albums, I rank them What Lies Beneath > Colours in the Dark > My Winter Storm. The first of those 2 I listen to regularly, and more than the Nightwish albums she's on. I don't listen to My Winter Storm nearly as much. Actually, I only have 2 of the Nightwish albums she's on, I should check the others out (I have Once and Century Child).
Anyways, was inspired to create the thread b/c I love the new song.