which do you think are the best 50 songs of METALLICA , either by your opinion or charts?

Answer 1

wow, 50 is alot.

Here are some of my favorites:

Battery
Creeping Death
Damage Inc.
Disposable Heros
Eye of the Beholder
Fade to Black
Fight Fire with Fire
For Whom the Bells Toll
Harvestor Of Sorrow
Hero of the Day
Hit the Lights
Jump in the Fire
Leper Messiah
Master of Puppets
Motorbreath
No Remorse
One
Orion
Phantom Lord
Ride the Lightning
Ronnie
Seek and Destroy
The Four Horseman
The Memory Remains
Shortest Straw
To Live is to Die
Trapped Under Ice
Welcome Home (Sanitarium)
Whiplash

Answer 2

50 is a little much, don't you think?

I like the following best:
1. Enter Sandman
2. One
3. Wherever I May Roam
4. Until it Sleeps
5. The Memory Remains

Not the most original list, I am sure, but those are my faves.