Good bit 'o metal. Obviously.
I don't really have music set aside for certain things, right now I'll pair Mark Tremonti's solo album and Alter Bridge's ABIII with anything.
Also very partial to a bit of Black Stone Cherry these days.
On Spotify though, I've got:
The three I've already mentioned,
Avenged Sevenfold
Breaking Benjamin - or at least, what craptastically poor selection of BB they have on Spotify... A mere, 1 album.
Device, though I'm thinking they're a bit lame.
Disturbed, because they're probably one of my most favourite bands evah.
Five Finger Death Punch, because War so totally Is The Answer.
Foo Fighters
Furyon - Found them through Metal Hammer's Best of British demo CD about a year ago, they're awesome.
Karnivool - Found them because they supported Skindred on a UK tour a few years ago, they kinda remind me of Tool, but they're vair awesome.
KoRn, 'cos I grew up listening to them and you have to listen to them once in a while.
Lamb Of God, because they're amazing.
Metallica - I like metal... Metallica... Kinda have to have them.
Machine Head, for much the same reasons as for Lamb of God
Pantera - In my opinion, the definition of heavy metal.
Rage Against The Machine - You're dead to me if you don't like them. Especially if your name is Joe McElderry.
Shinedown, who I discovered as they supported Disturbed a few years ago.
And lastly,
Velvet Revolver, an old favourite of mine, the modern progression of Guns n' Roses methinks.