What is your favourite metal band?

Disturbed, if that counts.

Metallica is ok...

Their 80's releases were their golden age in my opinion, although St. Anger is one of their latter releases I actually like.

I like a few Rammstein songs, too. I'm not sure if they classify as metal or not.

Megadeth
Iron Maiden
Metallica
Slipknot
Avenged Sevenfold
Black Sabbath

Opeth

Thrash Metal: Slayer
Death Metal: Fleshgod Apocalypse
Black Metal: Mgła
Nu Metal: Disturbed

opeth

Love so many but I guess I'd say Slipknot is my favourite.

Disturbed

Savatage ('80s U.S. Power-Prog metal)

Kreator
Death
Vektor
Dream Theater

Metallica

Black Sabbath

What kind of metal are you talking about? Its a very vast and deep category.