No order just times seen but here we go
Iron Maiden (4x)
Killswitch Engage (3x)
AC/DC (2x)
Ted Nugent (2x)
Ozzy Osbourne (2x)
Lynyrd Skynyrd (2x)
In Flames (2x)
Black Label Society(2x)
Shadows Fall (2x)
Trivium (2x)
Behemoth (2x)
3 Inches of Blood (2x)
Hatebreed (2x)
Rob Zombie (2x)
In This Moment (2x)
Lamb of God (2x)
The Rolling Stones
Black Sabbath
ZZ Top
TOOL
Queensryche
KISS
Halford
Slayer
Mastodon
Cannibal Corpse
Slipknot
Marshall Tucker Band
Slash's Snake Pit
The Answer
Skid Row
Quiet Riot
Slaughter
Night Ranger
Stone Sour
Cohered And Cambria
The Haunted
Bury Your Dead
Gizmachi
It Dies Today
Arch Enemy
Soilwork
God Forbid
The Black Dahlia Murder
Parkway Drive
Between the Buried and Me
Faceless
Every Time I Die
The Dillinger Escape Plan
As I Lay Dying
A Dozen Furies
Mudvayne
DAATH
All That Remains
Job for a Cowboy
Whitechapel
Mushroom head
Nile
Devildriver
The Showdown
Chthonic
Lordi
Black Tide
Static-X
Job for a Cowboy
Chimaira
Norma Jean
Atreyu
Five Finger Death Punch
Steel Beans
Bands I saw and wished I didn't:
Lauren Harris (but they did have Richie Faulkner)
AWOL Nation
Korn
Marilyn Manson
Dave Matthews (2x as of just a few minutes ago lol)