Ok, lets play a little game. I'll name two bands and someone will decide which is better, they then pick a band to vs the band that won the earlier round. Then the next poster decides which is better and it goes on and on.
Make sure you're quick before you post or someone might beat you to it.
I pick two bands.
Megadeth vs. Metallica
Another poster comes along and picks Megadeth.
Then he says Megadeth vs. Whoever.
Deep Purple vs. Led Zeppelin