"Please to meet you can you guess my name?"
As Lost speeds to a conclusion, the biggest question is just who is the Smoke Monster?
Well here are my best guesses:
1. Esau - The most obvious guess. Esau was betrayed by his brother Jacob and his mom in the Bible and vowed revenge. He was cheated out of his birthright (the island?). But how can he turn into a pillar of smoke or turn into dead people?
2. The Plague of the first born - Moses set many plagues against Egypt to free Jacob's people. The last was a plague to kill all the first born children. It would explain all the pregnancy issues on the island and why he can't kill Jacob (he wasn't a first born)
3. He really is the devil - He is always tempting people just like he did to Job. He is a manipulator. But how do you explain his mom issues or him saying he was once human. Maybe he is drawing from Locke's memories? Locke's mom was crazy.
In the Stephen King novels there is a recurring character that goes by many names (like Flagg in the Stand) but mostly goes by the Man in Black. He is the devil incarnate. The Lost writers are big Stephen King fans. Just saying.
4. He's some type of greek god like Hades or Cerebus. There's lots of Egyptian symbols on the island.
These are all off the top of my head. I'll think about it some more and maybe have a better answer next week.