What do you think is the best sounding metal album

Another vote for Puppy here; industrial emerged out of the metal backwater and Puppy invented it (nods also to Einsterzende Neubaten) Also saw them for Last Rights and Greater Wrong.. tours.

But also:

Tool - any recording
Type O Negative - October Rust
Agalloch - any
Tiamat - Skeleton Skeletron
Moonspell - any
Theatre of Tragedy - Aegis
Black Sabbath - Sabotage (especially remastered on vinyl)

why has no one stated metallica's s&m? I know it is the beginning of the sold out stage but man the symphony just adds to the sheer power of the band. if you count screaming trees as metal then dust is a killer album

Try some of the remastered Deep Purple albums such as In Rock and Fireball..and if you have SACD, the Live in London release is spooky real....Gillan is practically dancing between your speakers.

Alice in Chains, Dream Theater, King Diamond, Prymus, Megadeth all have made some great souding albums.