I kinda think "Kill 'em All" is overrated. They got so much better AFTER. I'd put "Ride" or "Master" on top for best rock albums ever.
Kill em all is raw metal. Yes Rde and Master are better. but Kill em all is still raw energy and poower.
Seek and Destroy , Whiplash, hit the lights, metal militia, no remorse, are masterpieces.