what band would you consider your favorite heavy metal band

Type O Negative

Black Sabbath / Iron Maiden / also love Wishbone Ash / Deep Purple /Uriah Heep/ Led Zeppelin & etc

Black Sabbath

Slayer

Iron Maiden, even though they haven't produced a good album recently. They are fantastic live.

dude book of souls was good

**** yeah nobody ever mentions Uriah Jeep

The South American stuff was good, the rest of it was less good.

Ha - Slayer?? I guess you forgot about the real original Death Metal band Venom. Check out the studio cover versions of "Welcome to Hell" by Ritual Carnage, Behemoth and Belialed. Download and put in your car - crank the hell out it to annoy people!! LOL

ACDC

Metallica -Ageless Music...

Anything with OZZIE in it.
Motorhead. rip Lemmy

Bad news ,
https://youtu.be/uf2vItHUpPk

Black Sabbath. no one comes close

Kiss (Kiss Alive II)

Deep Purple

Focus

Deathstars

Children of Bodom

Deadsy

Cradle of Filth

Helloween

J.S. Bach (Fugue in D Minor) Definitely should be on this list

Pantera

When you say "heavy metal" if you mean traditional heavy metal like Maiden & Priest style, then I'd go with Slough Feg. If you want to throw in progressive and power metal, I'd say Nevermore and Blind Guardian. Other types of metal (i.e. doom, black, death, thrash) there are countless bands to list, because those styles of music are actually still innovative these days.

Megadeth, GnR, Volbeat, Type O negative, Metallica

Wow, I can't believe that only one person in here mentioned Preist. Some other great bands mentioned, BOC, AC/DC, MEGADETH, PANTERA. As stated too many sub genras in the "Metal" categories unfortunately.