Ultimately I don’t think there are that many KILLER TONE kind of albums or bands. A lot of my favorite albums don’t necessarily have amazing guitar tones. They’re probably fine or pretty good or at least don’t get in the way of the song.
I would actually say Dimebag had a “great” tone even though I would never use it because it fit the material and his playing so well, worked great in the mix, and stood apart from what you heard elsewhere.
I was the biggest Death fan you could ever meet when I was a teenager but really Chuck always either had sort of bad or just passable tone. Symbolic is an amazing album and it has a GREAT MIX (seriously it holds up so well, the drums sound great) but the guitar tone when you focus on it is just kinda there. It’s serviceable and not BAD but it’s neither iconic nor ass kicking or anything else.