Order of my fav albums of Metallica's...
And Justice For All
Kill 'Em All & Master of Puppets tied for 2nd
Ride the Lightning
the rest is crap after that, except for maybe one or two songs, such as Until It Sleeps, in fact that might be the only other decent song of theirs after the Black album
My fav songs of theirs would be Harvester of Sorrow, Seek and Destroy, The Four Horsemen, Fade to Black, Master of Puppets, and many many others with no particular order.
I've been listening to them since I was in 5th grade, and I'm now going into 12th grade. It's been weird how each grade I move up more and more people start to listen to them. By 9th grade it seemed like most people my age were listening to them; that surely was not the case in 7th grade. Eh, good for them that they finally caught on...
Btw, the comments about me providing too much info, that was, um, me being non-serious (also known as joking by me). Sorry for being a smart ass right there.