I'll take 90's Hetfield over just about anyone in all of rock. Which is amazing because his 80's vocals aren't very good. The fact that he improved so much makes me really respect him for clearly working at it.
They aren't? I disagree. Master Of Puppets and especially And Justice For All are great. Yeah, maybe he became a technically better sings, and maybe that's what you're saying, but I thought he was pretty good in the 80's.
You can probably pick apart Kill 'Em All, but he was really just a kid that became the singer by default. Still, I think it's a landmark performance.