Russell made some bad plays this week. Falling for the old "rock in the pocket" trick was one thing; but going postal on his own alliance for no apparent reason was a horrible move. I guess he was trying to start some sort of feud within his group in order to create chaos, but did he really think he could manipulate Parvati!? Everyone was on to him from the very beginning, so Russell pretty much outed himself out of an alliance that he though he was in control of. Switching sides at this point certainly didn't help his position in the game, and he pretty much threw away the only jury votes he could have gotten. Russell can't win the game at this point.
On the other side of the spectrum, Sandra continues to impress me. She found an idol, she kept it to herself, and nobody even suspects that she has it. She doesn't appear to be a target at this point and looks like she's in a good position to win the whole thing. Rupert played a good game as well. He tricked people into thinkig he had an idol, he accurately predicted how the villains were going to vote, and he kept himself in the game by sending Candice home. He was then able to put aside his differences with Russell in order to vote Danielle out. He's playing a much smarter game than I thought he was capable of.