Top 5 Lost Theories

I am completely back on the LOST bandwagon; oh how I have missed this show.
I get my weekly fix of theory diving via Doc Jensen onEW.com and so after
reading his column and an entire weekend of thought (and
rewatching the premiere a couple of times over) here are the theories I am
most interested in at the moment:

• Jeremy Bentham/John Locke is not really dead; he will come back to life
  once they all return to the island.
• Miles Straum is the son of Marvin Candle - this is a no brainer (just
  like when we all knew that Claire was Jack's half-sister - btw, where IS
  Claire?)
• Ben Linus always knew so much about the crash survivors because he's
  met them before - in their time travels while he was a kid on the island! I
  want this theory to be true so badly.
• The 'Adam and Eve' found at the caves might just be a couple of our
  crash survivors after they die while they are traveling in the past (likely
  from Time Travel sickness! Since there was no sign of trauma on the bodies
  they mentioned).
• Not a theory, but a question: Who is coming after Aaron and why do they
  want to take him from Kate? In all likelyhood it is Widmore; but that is too
  easy of an answer - so who could it be?