Meh... i'm not gonna talk alot about Metallica but i will say this, IMO ...And Justice For All was their Last true buck the system album for me. sure the Black album was good.. from a mainstream POV. but many of the Diehard fans saw it as a sellout. it just wasn't the the same to me.
First metallica song i learned was Seek and Destroy followed by Sanatarium and Creeping Death.that was playing Bass. first Guitar somg i learned by metallica was One and (Enter Sandman only cause the band wanted to play it).
First song i ever played on Bass was Changin Times by Nazereth
Guitar- Breaking the Chains by Dokken and Too Much by AC/DC.

I prefer to play Great songs that weren't as popular, but thats just me.