My personal favorite is 'Take a shot', the insert song for the first season, it's a great song to gets you in the mood for action
'Innocent Starter' has a nice 'balance' to it, 'Eternal Blaze' is another song that gets you pumping, which fits the 2nd season as the action scenes were way better...
'Secret Ambition'... I don't know how to describe it... It gets you excited I guess
, I'm judging it along the lines of 'Eternal Blaze' since it somehow reminds me of it
... It also has a kind of dark, mysterious feeling to it, during the verse. Before the start of the Chorus, I get a sense of...'Resolution' from the music... Don't know whether it makes sense to you guys
But if I have to be fussy, the only part that doesn't sound right to me is the tune near the end of the chorus, abit of a let down...
EDIT: But like what LoweGear said... The Chorus, which is my favorite part except the ending, could be best described as 'BADASS' with the caps