I would say Metallica reigns supreme over ACDC. As already mentioned, their stuff sounds extremely similar while Metallica goes through variations; some good (Death Magnetic), some bad (St. Anger). However, it is an amazing feat for a band as old as ACDC to be as successful as they are today.
Just wondering whom do you think is best. Metal vrs. Rock. Let's hear some of your opinions.
This is wearing on my patience. I may be forced to post a rant in the foreseeable future. Just know this: Saying who where it should be who is normal (albeit frown upon) but saying whom when who is correct makes you look like a knob.
On topic, I don't like Metallica at all, and AC/DC is ok, I guess.