ESPN's Playoff Machine returned recently, allowing users to project playoff seeding based on game outcomes.
The machine allows for picking outcomes on a game-by-game basis, or by general parameters. A quick look at how the NFC's top six would shake out based on those general parameters:
Teams with highest winning percentages winning out: Atlanta Falcons (15-1), San Francisco 49ers (13-2-1), Green Bay Packers (12-3-1), New York Giants (9-7), Chicago Bears (12-3-1), Seattle Seahawks (10-6).
Home teams winning out: Falcons (12-4), Packers (10-6), 49ers (9-6-1), Giants (9-7), Bears (10-6), Seahawks (9-7).
Road teams winning out: Falcons (12-4), 49ers (11-4-1), Packers (10-6), Giants (9-7), Vikings (10-6), Bears (10-6).
Teams currently highest in power rankings winning out: Falcons (15-1), 49ers (13-2-1), Packers (13-3), Giants (9-7), Bears (12-4), Seahawks (10-6).
Teams averaging most yards per game winning out: Falcons (13-3), 49ers (11-4-1), Packers (11-5), Washington Redskins (10-6), New Orleans Saints (11-5), Giants (9-7).
Teams allowing fewest yards per game winning out: Falcons (14-2), 49ers (13-2-1), Bears (12-4), Dallas Cowboys (9-7), Seahawks (11-5), Packers (9-7).
My advice would be to select one of the parameters above, such as highest winning percentage or highest power rankings. That will make most of the outcomes match up with general expectations. From there, you can adjust individual games to fine-tune your selections. Once finished, click on the "copy url" link to save your scenario.