I'm not sure, but are DemonHunter a Christian band? All I know is they kinda sound like Slipknot
They're pretty good though.
Saw a local band called Lucerin Blue opening up for finger eleven a few weeks ago. They weren't bad, but lacked originality. Sounded like every other screamo band out there, watered down a bunch, with very little stage energy. Then, between a couple songs the singer mentioned "without Jesus Christ we wouldn't be here tonight" or something along those lines, and it all made sense. Yea, most Christian bands that I've heard tend to sound like a watered down version of someone else, but have there good moments.
Thousand Foot Krutch = Rage Against The Machine/Limp Bizkit
early Skillet = Nine Inch Nails
new Skillet = slightly Evanescence sounding, but really good/original IMHO
FM Static = every pop-punk band
Meanwhile you get some Christian bands that kinda downplay the Christian angle and say they're just a band, and the fact that they're Christians doesn't affect their music. These bands usually have a very original sound and have some success:
(keep in mind, whether you like them or not, or how many bands copied them, they have an original sound because you can hear two seconds of a song on the radio and say "that sounds like *name of band*")