i concur agree Aurvandils tá on this one. OSFGH has a certain uncompromising grit and heartfelt ferocity to it that gives it a different feel compared to some of their later recordings. It's Wagner-esque death metal if catch my drift.
I think increased sound production often sucks some of the raw spirit out of music.
Don't get me wrong - I love all their albums, but i love OSFGH, Avenger, and the Crusher the most.