These are my top 5 off the top of my head.
I always loved that track. To me that's Scar's theme. Scar is also a top notch villain. Dude sets out to rule the pride and achieves it. Perhaps he was too ambitious cause he couldn't hold it down but he made it to the top before falling off.
Song sounds evil as hell even if Caius isn't really evil.
I Like Orochimaru's fight theme better than the original but both are good. He's the villain we both deserve and need. He was the only villain in Naruto that was actually arguably evil and just in it for his own ambitions. I still have a hard time accepting what become of him.
Obviously
Kill la Kill spoilers
I always loved that track. To me that's Scar's theme. Scar is also a top notch villain. Dude sets out to rule the pride and achieves it. Perhaps he was too ambitious cause he couldn't hold it down but he made it to the top before falling off.
Song sounds evil as hell even if Caius isn't really evil.
I Like Orochimaru's fight theme better than the original but both are good. He's the villain we both deserve and need. He was the only villain in Naruto that was actually arguably evil and just in it for his own ambitions. I still have a hard time accepting what become of him.
Obviously
Kill la Kill spoilers
The theme song of a child molesting pedophile that cast aside her humanity and intends to sacrifice humanity to an alien race shouldn't be this dope.
....that sh!t gives me 
and if Madara just show up in front of me with his theme song and give me the 
look at me and I would be 
