And if we count early Sepultura as Thrash now we have a true problem because there's no way Arise will be left out of my top 10 (and Beneath The Remains is also a strong candidate).
Tied with Dimension Hatross and Killing Technology as my favorite Voivod album: a true masterpiece. I simply adore this record... Hugely underrated IMO. But I wouldn't call it Thrash per se. I don't even know how to label it... all I know it's psychedelic, dissonant, prog and heavy as hell. Not a single bad song. One of the best metal records from the 90's.. truly unique