Of course Metallica is number one... who else??
Others in no particlar order..

3 Doors Down
Audioslave
Breaking Benjamin
Matchbox 20 (only there 1st album)
Nugent
godsmack
Skynard
The Van Zants
.38 specal
Shinedown
Shooter Jennings
Corrosion Of Conformity
Blind Melon
Some Counting Crows
Tom Petty
Black Crows
Collective Soul
Bush
Bob Seger
Velvet Revolver
War Audition
and several other songs from other bands

And for the record I don't listen to Queen.