System of a Down or Metallica?
146511
In the mid 80's Metallica of course\nPresent time  System...
320000
Metallica ya idiot\nif not them then\nSlayer
49515
Ask System of a Down.
344426
dont know but i do know that system of a down is the best rock band!!!
635538
Metallica...All the time
490403
I will have to go for Trivium. I like all those bands but trivium makes me remember those good old metal days aside from their lead that is very metal.\nPEACE|RESPECT
946106
I agree with BomBs away  Nickelback or System of a Down
372012
First of all, there is a difference between hard rock and metal. Metal is just thrashing sounds and death roars, whereas hard rock is actually understandable music. I do like hard rock, (meaning Papa Roach, Staind, Fuel, etc.) but I'm not a fan of metal.
656382
i like both bands but older metallica still rules....
624693
SYSTEM OF A DOWN!!!! they are the best band ever, i love them so much! (",)
641365
QUEEN\nBohem Rhapsody
573398
my favorite band is metallica
949750
System of a Down! They f**king rock man!
401398
metallica -enter sandman\n\nor maybe queen, boheimien rhapsody? i don't like it, but everyone else seems to!
163789
System of a Down\nCradle of Filth \nHIM \nTOOL IS THE BEST!
74296
Slipknot. They gave off the most energy that I've felt at a concert. The mosh pit was insane. It was at the Electric Factory here in Philly (which is a small venue, very intimate). Luckily I was extremely close and got to meet a few of the band members. Best concert. Ever. \n\nComing in a close second is System of a Down. Then Metallica, then A Perfect Circle. They're all awesome bands. Highly recommended.
741414
Metallica\nDef Leppard\nLinkin Park\nScorpions\nGuns "N' Roses