Here's my list:
The Only Thing I Know for Real - Metal Gear Rising Revengance:
This is the main song for the Jetstream Sam Battle of the game, I love it because it represent the true Samurai spirit of Sam. I was so hyped when I heard this song while fighting Sam in-game, the best boss battle and best boss theme ever.
Rules of Nature - Same game as above
Every Freaking time, Evry Freaking time 1:04 pop up, I scream from the top of my lungs while I slam a giant robot to the ground and slice it into thousand of pieces.
Otherworld - FFX
God damm, This is the only song from the FF series that make me feel hype, Jetch is awesome.
Advent One Winged Angel - Not exactly a song from a video game but is from the FFVII license
Sephiroth, Sephiroth, Sephiroth, Sephiroth, Sephiroth, Sephiroth !!!!!!!!
Here Comes Vi - League of Legend
Arvil Lavigne should do a cover of this song
Male Roar ( Not a Lion King joke) - Dynasty Warriors 7 and 8 ( 8 version add in a small vocal part)
It's the main song for Deng Ai, one of the hero of the Jin Kingdom.
Naked Arms ( Both Version ) By TM-Revolution from Sengoku Basara 3 Samurai Heroes
Even though it's Engrish, Tatsu-Sama did a very good job, here is the japanese ver:
Street Fighter IV OST - SF IV Main Theme - Exile - The Next Door - Indestructible (English Version)
Again, Japanese dude singing American song, one againt prove that Japanese can sing English better than American ( Justin Bieber)
Vergil Theme, Taste the Blood, Original Mix - DMC3
"I see your might and it compare to something, that is if something is nothing"
Nothing beats this OST: best Crash Bandicoot OST ever, spiralmouth is amazing.
For anyone that hasn't heard this OST, give it a quick listen, you won't regret it. Can't get beats like this in an OST.