Maybe it's just me, but the one big unanswered question from last night's episode is... Why did Michael kill Anna Lucia? Ms. Clue never asked him to or instructed him that AL had to die. All Michael had to do was bring back Henry, Jack, Sawyer, Kate and Hurley.
Really, IMO, all of Michael's actions have been completely irrational and unrealistic.
First, why was he so belligerant with the Others? I understand the "angry father wanting his son back" routine... but I would think cooperating and a civil tone might have gotten him a lot further than all the yelling and resistance he put up. I honestly think that most rational people would have realized that and played that type of situation much differently.
Second, why did Micheal feel like he had to hide the truth from the rest of the survivors and why kill AL? If it was me, I'd let everyone in on the truth, ask them to release Henry and then explain that he needed the four people to go back with him. I think the Losties would have done all that to help Michael get his son back.
I understand they are writing the story for drama, so making people act completely rational doesn't exactly make for an interesting story. But some of this just doesn't make much sense to me. I'm looking forward to the season finale to see if hopefully they address some of this better.