This is amazing. Truly a great song in just about every aspect.
The guitars are very well played and tastefully amped and whatnot. The compression on the mix got a bit choppy on the palm-mutes, but other than that, the guitars sounded flawless. The leads and solos were extremely good; the guitar work is definitely the high point of this song.
The symphonic elements were pretty well done. The intro is dramatic, as it should be for the Batman theme. The part shortly after the intro when the guitars are playing with the trumpets sounds a bit odd, but that is the only time the symphonics didn't fit well.
Drumkit from Hell is a bit overused, but that's because it's a damn good and easy kit to use. I've used it myself. The drums were very well programmed, never giving away their inhuman nature. Very good use of cymbals and toms throughout, especially the cymbals.
The song is put together very well, both in mixing and in structure. Everything flows, and the song almost seems too short because it's so cool to listen to! You did a really great job on this; top notch! I'd like to compliment you on your guitar playing once again, because I really do like it. You're skilled, man.
Excellent song!