My personal choices are:

• Seek & Destroy - Kill 'Em All
  The whole 'kill everyone and everything!' is really emphasised here.

• Whiplash - Kill 'Em All (Alternative)
  "We're MetallicA!" It just gives off that energy.

• Don't Tread On Me - MetallicA (Black Album)
  By far the weakest song on the album, yes, but the snake makes the front cover.

• King Nothing - Load
  The Demo for King Nothing was called Load, that and it's a pretty popular song from the album I'd say.

• Fuel - ReLoad
  ReLoad is pretty much known for Fuel, c'mon.

• Prince Charming - ReLoad (Alternative)
  King Nothing, Prince Charming, it makes sense doesn't it? Besides, this is a kick ass song EVERYONE needs to hear. Deep cut for sure.

• My Apocalypse - Death Magnetic
  This is where the album title came from, Death Magnetic is IN the lyrics. Makes sense I'd say.

What do you guys think? Ever thought about this before?