War pigs by black sabbath cowboy...

I would say, for me, it should be The Unforgiven II.

Well, I would bet for these two : - Led Zeppelin - Starway to Heaven - The Black Crowes - Tornado ^^

It is a matter of personal preference. For me it was Jimi Hendrix's Purple Haze.

for me mr. crowley by ozzy o. one by metalica