Even though this division can boast having a team in last year's Super Bowl, it still has to be one of the weakest divisions in the NFL.
1. Arizona Cardinals
There is no reason to believe that the Cardinals can't put together another solid season especially given the division in which they play. The offense is basically intact and if an actual running game shows up then this team could be scary... but I wouldn't count on it.
The defense actually finished last season very nicely putting up an impressive showing in the playoffs. That unit is largely unchanged so they should be able to continue their success.
However, if this team were in any other division they wouldn't finish first.
2. Seattle Seahawks
If there is a team who can push the Cardinals this season, it will be the Seahawks. Decimated by injuries last year, the beginning of this season sees key players on offense return, plus the addition of the explosive T.J. Houshmandzadeh. The ball should definitely be flying again. The suspect part here is how the running game will produce and if Julius Jones can be solid for the Seahawks. But then again, the Cardinals have no running game... uh but then again their receivers are much better.
On the defensive side of the ball, hopefully Mora's background can rub off on a unit that performed sub par last season. A more aggressive scheme is in the works which can hopefully raise the level of pass defending.
3. San Francisco 49ers
A surprising unit from last season which actually finished respectable as Singletary began to have his effect on the team. Alas, this team only has one true weapon in Frank Gore and is unable to sign Crabtree who overvalues his worth as the 10th pick in this year's draft.
This team hasn't done much to improve it's standing from the last season and will continue to languish until they find more talent.
4. St. Louis Rams
The re-tooling of the Rams will take a long time and this team is a far cry from its glory days. While the offense has a couple of tools with which to work, the defense has way too little talent to make this team competitive. Welcome to head coaching, Spagnuolo.