Gotta say for me it would be the second opening of Soul Eater.
Fantastic lyrics and good all around opening tbh.
Whats yours?
Also ...> link to it on youtube http://www.youtube.com/watch?v=RgU4D9UxbrU
No its not a rickroll, and I loved this song so much..... its my ringtone >.>
I am a nerd... I know ...