It goes in this order
1) Thrash Metal
Top five bands
1. Metallica
2. Megadeth
3. Slayer
4. Coroner
5. Anthrax
honorable mentions: Exodus, Vio-lence, Dark Angel, Death Angel, SOD, Sodom, Kreator, Testament and Voivod
2) Death Metal
Top five bands
1. Death
2. Macabre
3. Deicide (Hoffman brothers era 87-04)
4. Morbid Angel
5. Carcass
honorable mentions: Possessed, Nile, Suffocation, Bolt Thrower, Entombed, Septic Flesh and Vader
3) Doom Metal & sub genres
Top five bands
1. Electric Wizard
2. Sleep
3. Mastodon
4. KYUSS
5. Saint Vitus
honorable mentions: Candlemass, Crowbar, Down, Pentagram, Trouble, Witchfinder General, High On Fire, My Dying Bride, Melvins, Cathedral and Paradise Lost
Other genres I enjoy are Prog Metal, Industrial Metal, and Groove Metal (90's)
And my top ten favorite metal bands
1. Metallica
2. Tool
3. Death
4. Devin Townsend
5. Electric Wizard
6. Sleep
7. Macabre
8. Megadeth
9. Iron Maiden
10. Slayer