You are all forgetting the "king and queen" factor. My guess is, the king and queen will be exempt from expulsion and may even get to make the final decision on who goes home. So I really haven't bothered with speculation at this point.
Though I do hope that Amy, Kristin, or Tara gets sent home, though Charla is not my favorite right now either after her behavior on Monday.
skyedog, that sounds a lot like the ancient Aztecs. Every year they made a human sacrifice to their gods, and the chosen sacrifice was treated as an honored guest for a year before they were sacrificed. Food, drink, women (or men), anything they wanted they were given. It was actually considered an honor to be chosen for this since it was believe that the soul of the sacrifice would become part of the essense of the gods. Something like that anyway. As opposed to the common criminals and prisoners of war, who were unceremoniously killed to appease the war god.
Remember, they ARE in Mexico...