Diamondhead, I agree re:Jessie - partially. Though I am a fan of black and white, I think Walt is simply not so cut and dry. It is my opinion that Walt's character is sympathetic to Jessie from the very beginning. Even towards the middle of season 3, when Walt finds himself needing to protect himself from Jessie, he still has more than just protection in mind. He really does care for Jessie. What else would explain him not deciding to outright have him murdered? Saul, after all, does mention the possibility of having to explore "other options." At that suggestion, Walt scoffs at Saul and instead proceeds to offer Jessie the partnership. Granted, I question some of the altruistic tendencies in Walt - though mostly he is out for himself and his family.