That's hard to say:

Bluffman - Darkstalkers OVA
Victor's Theme- Darkstalkers Revenge
Fine Again- Seether
Theme of Gemini- Android Kikaider soundtrack
The Hell of Civil War- Demon's Crest
Legend of Firebrand- Demon's Crest
Bat Country- Avenged Sevenfold
House of Cards- Madina Lake

There's even I song I made myself at one point that was inspired by Victor's Theme...

Most of these songs represent my existential...everything.

There aren't many songs with words that fit me perfectly. There are exceptions, but sometimes I have no need for words since the atmosphere speaks for itself