I know that's a bold claim, but I think it's true. They outscored their last two opponents by 80 points (the Colts did exactly half that). Until they rested their startes for three of their last 8 quarters they had the top offence in the NFL (they are still second). Their defense has the most sacks and the number 2 redzone defense (after Chicago who doesn't have the offense to back it up *cough*Pittsburgh*cough*).
They have the number one rusher in the league (Shaun Alexander).
And they just got their top receiver back (Darrell Jackson)
They have too many weapons to stop on offense and their defense is playing out of their mind right now. The Seahawks have just about wrapped up homefield advantage through the playoffs (a homefield advantage that caused the Giants to commit 11 false starts).
So, here's my prediction: the Seahawks will easily beat Tennessee and will beat the second string of Indianapolis (Dungee will rest his starters), and then Seattle will lose to Green Bay on New Years day (because they will have wrapped up home field and Holmgren will rest the boys after their night of partying).
In the playoffs the Seattle crowd will disrupt the incomming offenses and Seattle will win close games (which they've proved they can do against Dallas and New York).
Superbowl XL: Seattle: 38 Indianapolis: 30
Update: So far so good. Seattle wins and the Colts lose on Sunday. Only time will tell, but I'm feeling like it finally here. Being a Seahawks fan has been a hard road - no titles, and no playoff wins since 1984 (I was 5 years old).
Update (again): Merry Christmas to Seattle! Home field advantage through the playoffs, and a chance to rest and get healthy in the three weeks between now and their first playoff game. The predictions are still intact.