Lay them on me. Everyone that you like.

I like:

Edguy
Hammerfall
Helloween
Children of Bodom
Slipknot
Nightwish
Within Temptation
Sabaton
Twilighting
Dream Evil
Asking Alexandria
Manowar
Avenged Sevenfold
Lordi
Sonata Arctica

Give me more!!!

metallica
megadeth
kreator
slayer
dethklok
tool
anthrax
helloween
disturbed
sabaton
black sabbath
cannibal corpse
six feet under
death angel
godsmack
iron maiden
lamb of god
system of a down
pantera
rammstein
rob zombie
sepultura
scum of the earth
slipknot
static-x
testament


i could go on but i think this is good for now

^Them

^ And them, I don't much care for metal unless it's technical death metal, just thought I'd share these guys.

Megadeth
Onslaught
Nuclear Assault
Death
Morbid Saint
Kreator
Violent Force
Entombed
Gorguts
Devastation
Protector
Epidemic
Invocator
Incubator
Gorement
Gomorrah
Oblivion
Nocturn
Accuser
Obituary
Autopsy
Cannibis Corpse
Morgoth
Possessed
Metallica
Slayer
Razor
Bathory
Coroner
Vader
Paradise Lost
Testament
Sodom
Unleashed
Thanatos
Sinister
Pestilence
Messiah
Assassin
Bolt Thrower
Assorted Heap
Chakal
Exhorder
Cerebral Fix

and many, many others.

Machine Head
Lamb Of God

Channel Zero.
Teaching you kiddos some oldschool metal here ;]
*edit: Destiny showed me this yesterday:
http://www.youtube.com/watch?v=U_j4Eq3ziE4
The band isn't metal, but that song come close to it.

OLDSKOOL

The Acacia Strain
After the Burial
All Shall Perish
All That Remains (Some)
Animals As Leaders
Arsonists Get All The Girls (Some)
As Blood Runs Black
August Burns Red
Between the Buried And Me
The Black Dahlia Murder
Born Of Osiris
Buried In Verona
Carnifex
Chelsea Grin
Chiodos
Conducting From The Grave
The Crimson Armada
The Devil Wears Prada
Eyes Of A Traitor
Greta Knights
The Fall Of Troy
From The Shallows
Iwrestledabearonce (Some)
Knights Of The Abyss
Miss May I
Molotov Solution
Oceano
Parkway Drive
Protest The Hero
Suicide Silence (Early)
Texas In July
Tides Of Man
Through The Eyes Of The Dead
Veil Of Maya
We Butter The Bread With Butter
Within The Ruins
Whisteria Cottage
Whitechapel
Wretched

Sonic Syndicate
Atreyu
Dead by April
In Flames
Black Veil Brides

I like Lamb Of God and Hammerfall. Also Megadeth.