I'm mostly going to use this to post lyrics for songs I plan to make, so I'm gonna list some of the bands I like so you can get an idea of what they might sound like (I'll probably keep adding to this, since there's so many):
In no particular order:
Amorphis, Cannibal Corpse, Candlemass, Between the Buried and Me, Hatebreed, Godsmack, God Forbid, Killswitch Engage, Lamb of God, Behemoth, Metallica, Megadeth, Black Sabbath, DevilDriver, Dragonforce, Chimaira, Sevendust, Suicide Silence, Mastodon, Trivium, As I Lay Dying, All That Remains, Children of Bodom, Diecast, Disturbed, Down, Dream Theater, Element Eighty, Korn, Machine Head, Nevermore, Nightwish, Nile, Opeth, Nirvana, Orphaned Land, Phish, Primordial, Radiohead, Serj Tankian, System of a Down, Shadows Fall, Slayer, Slipknot, Stevie Ray Vaughan, Stone Sour, Symphony X, Unexpect.