That's extremely hard and I'll probably not agree with these next weeks, as I'm usually changing my favourites but:

1. Evanescence - Give Unto Me (My favourite song of all time, this never changes. It's beautiful and I recommend this to any fan of the piano. Also, Amy made this song when she was almost my age, maybe a year older (I'm 15) so it amazes me.)
2. Evanescence - Hello
3. Tori Amos - Gold Dust
4. System of a Down - CUBErt (This is tough, as I love SoaD, so I did the best I could.)
5. The Dresden Dolls - Girl Anachronism (Also, extremely hard, as Jeep Song, Gravity and Slide are songs I love too.)