Well currently I've got a tie for 3 different ones...
1.All Time favorite-Metallica(old school...I grew up on it)
2.Lyrical and guitar style favorite-Slayer
3.Up and coming favorite(currently most played)-Children of Bodom
I listen to all three of these bands at least once a day I go through withdrawls if i don't therefore I can't really decide on one they are all my favorites for different reasons.
1.All Time favorite-Metallica(old school...I grew up on it)
2.Lyrical and guitar style favorite-Slayer
3.Up and coming favorite(currently most played)-Children of Bodom
I listen to all three of these bands at least once a day I go through withdrawls if i don't therefore I can't really decide on one they are all my favorites for different reasons.