I'm a 49er fan too, but even more so, I'm a Cal fan. I follow all 32 NFL teams for fantasy purposes, but I have a special squishy place in my heart for those featuring former Cal players like Aaron Rodgers, Desean Jackson, Jahvid Best, Tony Gonzalez, Marshawn Lynch, Justin Forsett, etc.
I think the most important position is head coach. With a good coach who knows how to use his players and put them in position to succeed, you can win a variety of different ways. It sure helps to have a good QB, but it's not essential -- for example, 2000 Ravens (Trent Dilfer), 2003 Bucs (Brad Johnson), 2008 Giants (Eli Manning). I fimly believe that if the 49ers had drafted Rodgers instead of Smith, Rodgers would have failed too because it was an impossible situation. That doesn't necessarily mean Alex Smith would have thrived somewhere else; we'll never know.
The 49ers had good talent, but I attribute the success more to the coaches (Walsh, Seifert) and the system. You could plug in guys like Steve Bono, Elvis Grbac, Tim Rattay, whoever and sitll get good results.
I pick Green Bay over Baltimore in the Superbowl (interesting that I had same as Obi, but different result). GB will dominate all season long, Rodgers gets his second SB MVP. Key pickups for Bal in Bryant McKinnie, Vonta Leach, and Lee Evans. Bal defense is much weaker than in the past, especially the CBs but the offense will be much better. I think Pit wins the division but Bal gets in as a wild card and then Ray-Ray, Ed Reed, Suggs, etc. make a push during the playoffs.
AFCN: Pit, Bal, Cle, Cin. AFCE: NE, NYJ, Buf, Mia. AFCW: SD, KC, Oak, Den. AFCS: Hou, Ten, Ind, Jax. NFCN: GB, Det, Min, Chi. NFCE: Phi, Dal, Was, NYG. NFCW: StL, Ari, SF, Sea. NFCS: NO, Atl, TB, Car.
@goldfinger: Min has good QBs with Randall Cunningham and Daunte Culpepper. Maybe not fantastic ones, but better than average. Detroit today is held back only by Stafford's injuries. If he stays healthy, their RBs are more than enough.