What Is The Best Metallica Song Ever?

With news that The Masters of Thrash are working with Rick Rubin on a new album, working on a new 3d movie, and organizing their very on music festival, it's hard to imagine that these cats ever take a day off. Since the early 80's, they've been tearing stages and air-waves up with their high intensity tunes and antics...not to mention the fact that they average a new bass player every decade. So, with their extensive back-log of hits, we want to know what is the greatest Metallica tune ever? Vote below, and we'll post the results and winning video tomorrow.