i had previously posted somthing saying that sawyer is gonna be a bad guy is season six. somebody had pointed out that it couldnt be a story that lasted long because the show has other places to go. but i now think that their rivalry will be apart of the bigger picture all along. think about it widmore and ben have had an interesting rivalry for aperently many years. and jacob and his lil buddy (whom people are calling nemesis) dont seem to like eachother very much either. so maybe since sawyer will prolly want to kill jack he wont be able to and the show can finaly explain the whole "rivals cant kill eachother thing" likie when jack tries to kill locke.