What one song would you choose as a jRPG boss battle theme, and what one song you you choose for an anime opening? For example: for battle music, I'd choose "Body Breakdown" by Dragonforce. It just sounds so much like a Nobuo Uematsu rock battle theme. My anime opening would be "Am I Awake?" by They Might be Giants. Most of their music wouldn't work, but this one just has a disjointed, ethereal feel that fits perfectly to something like Death Note.

One Winged angel.

One Winged angel.

... Not exactly what I meant. I mean one that isn't already used...

What's a jRPG?

A japanese RPG, a.k.a. the only good type of RPG.

Thought so, so you're asking to choose a boss battle theme from out of any VG theme already used, right? but in that case I wouldn't know, even less when it comes to anime.

One Winged angel.

Man, I laughed.