[Nils]

If the discussion is about the Post-Destruction of the Ring Sauron, then I'd say he fits the rule, not the exception.

The Balrogs, once killed, never came back. The only reason why Sauron was able to come back after his destruction at the end of the Second Age was because of his anchor (the Ring).

Gandalf's return was an act of God. I don't believe anyone should base an understanding of how things normally work based on a miracle.

By the way, I think most people believe that Sauron did not have a physical form during the Third Age. I know I did for the longest of times. [img]smilies/redface.gif[/img]