Best speed/thrash metal bands?

wich are the best?

For speed/trash metal the best is METALLICA
for trash metal only
Metallica
Overkill
Soulfly
Torture Squad
Hermética
Horcas
Nepal
Cavalera Conspiracy
Dorsal Atlântica
Executer
Korzus
Lobotomia
MX
Nailbomb
Ratos de Porão
Sarcófago
Thrash albums[show]
I.N.R.I.
Rotting
The Laws of Scourge
Crush, Kill, Destroy

Sarcófago
Anvil
Bison
Dead Brain Cells
Eidolon
Eudoxis
Exciter
Am I Blood
Deathchain
Hevein
Mokoma
Stone
Stam1na
National Napalm Syndicate
Children of bodom
Acid Reign
Atomkraft
Blood Eagle
Cerebral Fix
Deadfall
Evile

SPEED METAL-
Accept

Restless and Wild
Agent Steel

Skeptics Apocalypse
Mad Locust Rising
Unstoppable Force
Omega Conspiracy
Order of the Illuminati
Angel Dust
Into the Dark Past
To Dust You Will Decay

Animetal
Anonymus
Anthrax
4Greatest bands-Megadeth
Metallica
Motörhead
Slayer
AND-
Helloween
Judas Priest
Whiplash
Savatage