I'm not gonna just type "Metallica" like everyone else seems to post. This is not a "who is the better artist poll", yet I do agree on the fact that Metallica's album is better by a long shot.
Metallica's
"...And Justice For All" album is most likely my favorite of theirs without a doubt. I rate
"Master Of Puppets" quite highly too though. They were always one of the great metal bands atleast until just after 2000 hit...ugh!