Here is the Seahawks resume over the last 10 seasons ('04-'13).
Seattle Seahawks
88-72 (55%)
6 NFC West Championships
9-6 in playoffs (7 appearances)
2 Conference Championships
1 Super Bowl win
The competition...
New England Patriots
124-36 (77.5%)
9 AFC East Championships
13-7 in playoffs (9 appearances)
3 AFC Championships
1 Super Bowl win
Pittsburgh Steelers
105-55 (65.6%)
4 AFC North Championships
10-4 in playoffs (6 appearances)
3 AFC Championships
2 Super Bowl wins
Green Bay Packers
96-63 (60%)
5 NFC North Championships
6-6 in playoffs (7 appearances)
1 NFC Championship
1 Super Bowl win
Indianapolis Colts
111-49 (69%)
7 AFC South Championships
8-8 in playoffs (9 appearances)
2 AFC Championships
1 Super Bowl win
New York Giants
90-70 (56%)
3 NFC East Championships
8-3 in playoffs (5 appearances)
2 NFC Championships
2 Super Bowls
Baltimore Ravens
95-65 (59%)
3 AFC North Championships
9-5 in playoffs (6 appearances)
1 AFC Championship
1 Super Bowl win
And just for fun...
San Fransisco 49ers
75-84 (47%)
2 NFC West Championships
5-3 in playoffs (3 appearances)
1 NFC Championships
ZERO Super Bowl wins
Seattle Seahawks
88-72 (55%)
6 NFC West Championships
9-6 in playoffs (7 appearances)
2 Conference Championships
1 Super Bowl win
The competition...
New England Patriots
124-36 (77.5%)
9 AFC East Championships
13-7 in playoffs (9 appearances)
3 AFC Championships
1 Super Bowl win
Pittsburgh Steelers
105-55 (65.6%)
4 AFC North Championships
10-4 in playoffs (6 appearances)
3 AFC Championships
2 Super Bowl wins
Green Bay Packers
96-63 (60%)
5 NFC North Championships
6-6 in playoffs (7 appearances)
1 NFC Championship
1 Super Bowl win
Indianapolis Colts
111-49 (69%)
7 AFC South Championships
8-8 in playoffs (9 appearances)
2 AFC Championships
1 Super Bowl win
New York Giants
90-70 (56%)
3 NFC East Championships
8-3 in playoffs (5 appearances)
2 NFC Championships
2 Super Bowls
Baltimore Ravens
95-65 (59%)
3 AFC North Championships
9-5 in playoffs (6 appearances)
1 AFC Championship
1 Super Bowl win
And just for fun...
San Fransisco 49ers
75-84 (47%)
2 NFC West Championships
5-3 in playoffs (3 appearances)
1 NFC Championships
ZERO Super Bowl wins