Slipknot
Korn
Mudvayne
System Of A Down
Disturbed
Marilyn Manson
Cannibal Corpse
Mushroomhead
Stone Sour
Linkin Park

2000s Rush
90s Rush
80s Rush
70s Rush
Foo Fighters
Alice In Chains
Filter
Third Eye Blind
The Wallflowers
Shinedown

Note: #5-#10 are mostly subjective and may have just been randomly selected from my music library.

Only the top 3 are in any order. I would really have to meditate on the issue to rank them beyond that point. I'm probably leaving someone huge out, but off the top of my head:

1. In Flames
2. Blind Guardian
3. Iron Maiden
4. Kansas
5. X Japan
6. Mastodon
7. Devin Townsend
8. Extol
9. Dream Theater
10. Opeth

I can only list five. The other five wouldn't really be top bands. The order is as follows:

1. August Burns Red
2. Parkway Drive
3. Deftones
4. Tool
5. Slayer

1. Kiss
2. Rush
3. Death
4. Black Sabbath
5. Sleep
6. Slayer
7. Iron Maiden
8. Cannibal Corpse
9. Obituary
10. The Velvet Underground/Lou Reed