As for a top 10, I have nothing. I'm not as committed to metal as I was 2+ years ago. But, I have a list of ones I've listened to, and ones I want to hear.

Listened to:

Iron Maiden
Blind Guardian
Sirenia

Want to listen to and will.. probably before the week is out because I'm on a Metal kick lately (and didn't know they had albums out):

Korpiklaani
Saxon
Ensiferum
Napalm Death
Venom

Ones I'll listen to to make it 10 (because I at least heard these bands and like what I've heard):

Enslaved
Nightwish