I like the naruto soundtracks for pvp and sieges xD Like:
The Raising Fighting Spirit - Toshiro Masuda
Bad situation - Toshiro Masuda
Naruto Main Theme - Toshiro Masuda
Strong and Strike - Toshiro Masuda
Orochimaru's Theme - Toshiro Masuda
Orochimaru ~Fight~ - Toshiro Masuda
Raikiri (Thunder break) - Toshiro Masuda
Heavy Violence - Toshiro Masuda
Sarutobi - Toshiro Masuda
Then for siege movies when you can decide where what music goes:
Turn Over - Toshiro Masuda
Victory - Toshiro Masuda
Happy end - Toshiro Masuda
The songs are all instrumental but they really get you into the right mood for pvp/sieges.
They can all be found here btw:
http://www.narutocentral.com/multimedia/soundtracks/