Okay, here is a list, in order (No. 1 being my favorite/top pick), of heavy music albums that - in my opinion - never get too old to listen to.
10. Poison the Well - Opposite of December (1999)
9. The Black Dahlia Murder - Nocturnal (2007)
8. Beloved - Failure On (2003)
7. The Acacia Strain - The Dead Walk (2006)
6. All Shall Perish - The Price of Existence (2006)
5. Between the Buried and Me - (self-titled) (2002)
4. As I lay Dying - Frail Words Collapse (2003)
3. August Burns Red - Thrill Seeker (2005)
2. Everytime I Die - Hot Damn! (2003)
1. The Black Dahlia Murder - Miasma (2005)
I could seriously listen to Miasma all day everyday and NEVER get tired of it. The album is just pure gold beginning to end.