To my list I have to add Testament - The Formation of Damnation
Not only is it the best Testament album of all time (FACT!), I believe this is up there with the best thrash albums ever.
All the band members are on top form, Alex Skolnick's lead playing is just inspired, Chuck Billy continues to demonstrate his awesome range, and Paul Bostaph is amazing as ever on the drums (will he make another record with Testament, or does he want to make one record with all the original thrash bands? Metallica have been crying out for a decent drummer for the last 25 years!).
Andy Sneap (ex Sabbat guitar) has produced an excellent sound on this album, and the songs are well crafted. Testament have thrown down one hell of a gauntlet with this album, with no hype at all. The real question is, are Metallica going to pick it up?