I'll humer him.
1. Slayer
2. Superjoint Ritual
3. KoRn
4. Mushroom Head
5. Cradle of Filth

Notable mentions:
Black Label Society
Hed p.e.
Slipknot
In Flames
Cannible Corpse

1.Rob Zombie
2.Slayer
3.Slipknot
4.Ozzy Osbourne
5. N.I.N.

Blind Guardian
Pantera
Savage Circus
Cryptopsy
Primal Fear

i don't know much about metal, but since when is NIN, metal ? :confused:

Slayer
Dimmu Borgir
Pantera
Children of Bodom
Black Sabbath

Industrial metal. and yes it is still metal

NIN is NOT metal.

Obituary - Slowly We Rot

Sepultura - Choas A.D

Cannibal Corpse - The Bleeding

Pantera - Reinventing The Steel

Slayer - South Of Heaven

are my top five favorite metal albums because they have very original riffs, grooves and are still real catchy years after their release. (other notables would be the first few Sabbath and Death albums, Metallica's Kill em All, Pantera's The Great Southern Trendkill, the first three Deicide albums and Pungent Stench's Been Caught Buttering)

don't know what my top five bands would be these days..... haven't really been listening to metal much latley. I'm all about Grindcore these days.

oh shitz! how did i forget Cannibal Corpse.

OK theres way more than 5

Nile
Nunwhore Commando 666
Mucupurulent
Paracoccidioidomicosisproctitissarcomucosis
Bowel Stew
SplatterHouse
Prostitute Disfigurement
Devourment
Suffocation
Angel Corpse
Death
Beherit
DarkThrone
Cannibal Corpse
Libido Airbag
Judas Iscariot
and many more, ALL TIED FOR #1 I'd say