Illinois could win the west. They have Sparty, Iowa and NW left. Those three aren't any tougher than the last three they just beat. Illini!! (Of course it depends on what Wiscy does this last month. Heh.)
Wisconsin, Minny and Iowa would all have to lose a couple games. It's just that, at this point in the season it isn't usually even mathematically possible for Illinois to win. Woo hoo Illini!