Yeah, I don't think we're going to know the West winner until the final week - Seattle is back to having the lead, but they also have Green Bay and Minneapolis the next two weeks, whereas the Rams have the still only occasionally feisty 49ers before the Jets.
Similarly, I wouldn't crown anyone in the South yet - yeah, Kirk is a statue (with all the downsides that entails), but the Falcons still have the Raiders, Giants, and Panthers to play, plus a potential "No Game Tape" benefit whenever Penix starts.