Seattle seems to matchup very well against Denver.
Offensively?
The defensive scoring rank of the recent Seahawks' schedule
49ers - #3 - 23 pts
Saints - #4 - 23 pts
Rams - #13 - 27 pts
Cardinals - #7 - 10 pts
Giants - #18 - 23 pts
49ers = #3 - 17 pts
Saints - #4 - 34 pts
Average - 22.43
5 of the last 7 games are against top 10 scoring defenses. Four against top 5 scoring defenses. They've been pretty respectable considering their level of competition. Denver is ranked #22 in scoring defense. The only teams with a worse defense than Denver the Seahawks have played this year are Jacksonville, Minnesota, Atlanta, and Houston. They scored 45, 41, 33, and 23 in those games. Even against a tough defensive schedule lately, they have held their own.
Most offenses are going to look bad playing the majority of a run against top 5 defenses. The Seahawks scored the 9th most points in football this year against a schedule full of good defenses with a team philosophy designed to shorten games and rely on their exceptional defense. In points per play, they ranked fifth.
http://www.teamrankings.com/nfl/stat/points-per-play
Your shtick about the Seahawks not having enough offense to win the Bowl is tired. And it will be wrong regardless of the outcome of this game. The strength of the team is definitely the defense, but the offense is without question good enough to win.
I will note, however, that no team has ever won the Super Bowl allowing as many points as the Broncos.
http://www.coldhardfootballfacts.com/content/worst-super-bowl-winning-defenses/5723/ who are at 24.9 per game this year. Do you think that Denver doesn't have enough defense to win the game? I don't. The last time Manning took a defense so bad no team that allowed more had ever won a Super Bowl to the game he won it. He could very well do the same.
At this point, both of these teams could win the game. They've both got enough offense. They've both got enough defense. Now flip a coin.