I think this week's LOST was easily the best episode of the season. It started off with a great throwaway line from Sawyer tossed as a bone to fans annoyed at the proliferation of characters this season:
Who the hell is Nicki?
I was worried for a few minutes it might end up being a grim flashback episode with no new content, but quite the opposite: a few juicy morsels of information about overarching plot nestled amongst the Paolo/Nicki exposition. Plus a completely awesome and super-creepy finale. Harkens back to the good old days!