We discuss it on the playoff thread but here is the straight skinny:
There are three teams that can finish tied at 13-3 (Seattle/San Fran, New Orleans, Green Bay) and five that can finish tied at 12-4 (Seattle, San Fran, New Orleans, Green Bay, and Minnesota).
In the 13-3 case, the first three way tie break is conference record and New Orleans loses that to both Green Bay and Seattle. Then Seattle beats Green Bay by common opponents.
In the 12-4 case, which teams lost when matters a huge amount. In the case of Minnesota and Green Bay, Green Bay gets the division crown by way of either head to head or division record depending on which games were won and lost. That kicks Minnesota out of the division leader ties. Likewise Seattle and San Fran has to be resolved. If Seattle won in week 17, then Seattle kicks out San Fran by head to head. Otherwise it goes down to SoV Tie Break which likely (see below) favors San Fran. Then the three survivors sort out the 1-3 seeds. If it is San Fran, Green Bay, and New Orleans, San Fran gets the #1 seed by head to head and Green Bay gets the #2 by way of conference record. If it is Seattle, Green Bay, and New Orleans, it works like the 13-3 case above. If Seattle drops to the wildcard, then Minny gets the #6 seed (head to head), if San Fran drops to the wild card then Minny gets the #5 seed (better common opponents in this case).
Finally, if San Fran loses to the Rams, SoV between Seattle and San Fran becomes hugely important. Otherwise it's meaningless. Here is the SoV between Seattle and San Fran assuming that Seattle wins vs Arizona next week and San Fran loses to the Rams next week:
Wins by Seattle and not San Fran: Minnesota, Philadelphia, Atlanta Combined Record of 22-20
Wins by San Fran and not Seattle: Green Bay, New Orleans, Washington: Combined Record: 25-17
This is subject to change but right now SF has a +3 advantage in SoV.