SEATTLE -- Two bitter rivals in one division, two teams with vitriol between players, coaches and fans. It comes down to a rubber-match showdown to decide which NFC West team will reach the Super Bowl.It doesn't get any better in the NFC Championship Game: The San Francisco 49ers and the Seattle Seahawks Sunday at CenturyLink Field.ESPN.com Seahawks reporter Terry Blount and 49ers reporter Bill Williamson take a detailed look at some of the key issues entering a game in which emotions are bound to be sky-high.