The cool thing about Disposable Heroes is that it's probably the one song where ALL Metallica members are at their peak:
It's some of the best rhythm guitar by James.
Some of the best vocals by him too.
The drumming is awesome.
The bass lines are frenzied and the fact that Cliff plays with his fingers makes me want to do his dead carcass.
....AND, as is a known fact, it features Kirk Hammet's greatest solo ever.
So yeah, quite very possibly, Disposable Heroes could be the greatest Metallica song of all time.
But then there is "For Whom the Bell Tolls" and all logic goes out the window.