VH1 just did a top 20 metal bands of all time. Of course many of the picks were silly (WASP, Poison on the list but no Pantera?!?) but you have to expect that. I can't remember all of it, but the top 5 was:

5. Judas Priest
4. Black Sabbath
3. Iron Maiden
2. ACDC
1. Metallica

I thought you were required by law to pick Black Sabbath as #1!

My picks for top 10:

10. Type O Negative/Fear Factory
9. Slayer
8. Pantera
7. Queensryche (even if Mindcrime was their only album)
6. Iron Maiden
5. Tool
4. Iced Earth
3. Opeth
2. Dream Theater
1. Metallica