Best metal band ever?

[Siginulfo]

I have more than one:

-Tyr
-Korpiklaani
-Heidevolk
-Finsterforst
-Vintersorg


And for you?

[Piparskeggr]

Depending upon the sub-genre: Blue Õyster Cult, Black Sabbath, Apocolyptica, Metallica, Tyr, Korpiklanni, Cannibal Corpse, White Zombie, Disturbed, Saliva, Saxon, Samson, Judas Priest, Iron Maiden, AC/DC, Dio, Rainbow, Deep Purple...been to over 400 concerts...

[The Blade]

I don't know about best but among my favourites are Moonspell, Hypocrisy, Lacuna Coil, Sepultura, Slayer, In Flames, Tiamat, Crematory, Delain, Rammstein, Kreator, Sodom, Sonic Syndicate, Paradise Lost, Satyricon, Darzamat, etc.