Top 10 favourite thrash albums

Reign In Blood - Slayer (This will always be #1 in my book)

The rest in no particular order:

Rust In Peace - Megadeth
Years Of Decay - Overkill
Master Of Puppets - Metallica
Among The Living - Anthrax
The Legacy - Testament
No Place For Disgrace - Flotsam & Jetsam
The Dark - Metal Church
Absolute Power - Powermad
Ironbound - Overkill (Yeah, this album is that good. I rank it their best right now. Time will tell if it stays there.)
 
No order.

Megadeth - Rust In Peace
Sodom - Agent Orange
Metallica - ... And Justice For All
Testament - The New Order
Kreator - Extreme Aggression
Whiplash (USA) - Power And Pain
Destruction - Infernal Overkill
Necrodeath - Fragments Of Insanity
Dark Angel - Darkness Descends
Slayer - Show No Mercy
 
Only one by each band, else things would get difficult...

1. Forbidden - Twisted Into Form
2. Realm - Suiciety
3. Paradox - Heresy
4. Megadeth - Rust in Peace
5. Heathen - Victims of Deception
6. Vektor - Black Future
7. Demolition Hammer - Tortured Existence
8. Vendetta - Brain Damage
9. Wargasm - Why Play Around
10. Testament - The Legacy

Honorary mentions to Depressive Age's First Depression, Artillery's By Inheritance, Atrophy's Violent By Nature, Kreator's Enemy of God, Anthrax's Among The Living, Suicidal Tendencies's How Will I Laugh Tomorrow, Xentrix's Shattered Existence, Sacred Reich's The American Way, Anthrax's Among The Living and of course Metallica's ...And Justice For All!
 
I'm not going to order them:

Metallica - Master Of Puppets
Slayer - Reign In Blood
Kreator - Pleasure To Kill
Anthrax - Among The Living
Metallica - Ride The Lisgtning
Metallica - And Justice for All
Megadeth - Rust In Peace
Venom - Black Metal
Pantera - Cowboys From Hell
Sodom - Agent Orange