There are four teams left in the NFL playoffs, with two games to decide who'll play for the Super Bowl. But which units will have the biggest impact on Sunday's championship games? Click on the images to rank each team's offense, defense and special teams. You must rank at least five for your vote to count.

Stats from 2012 regular season.

2012 NFL playoff units

49ers Offense

49ers Offense

361.8 YPG, 11th in NFL
24.8 PPG, 11th in NFL

49ers Defense

49ers Defense

294.4 YPG, 3rd in NFL
17.1 PPG, 2nd in NFL

49ers Special Teams

49ers Special Teams

29-42 FG (69.0%), 31st in NFL
24.8 yds per KO return, 12th in NFL

Falcons Offense

Falcons Offense

369.1 YPG, 8th in NFL
26.2 PPG, 7th in NFL

Falcons Defense

Falcons Defense

365.6 YPG, 24th in NFL
18.7 PPG, 5th in NFL

Falcons Special Teams

Falcons Special Teams

33-38 FG (86.8%), 14th in NFL
23.7 yds per KO return, 14th in NFL

Patriots Offense

Patriots Offense

427.9 YPG, 1st in NFL
34.8 PPG, 1st in NFL

Patriots Defense

Patriots Defense

373.3 YPG, 25th in NFL
20.7 PPG, t-9th in NFL

Patriots Special Teams

Patriots Special Teams

29-35 FG (82.9%), 18th in NFL
21.2 yds per KO return, 25th in NFL

Ravens Offense

Ravens Offense

352.5 YPG, 16th in NFL
24.9 PPG, 10th in NFL

Ravens Defense

Ravens Defense

350.9 YPG, 17th in NFL
21.5 PPG, t-12th in NFL

Ravens Special Teams

Ravens Special Teams

30-33 FG (90.9%), 6th in NFL
27.3 yds per KO return, 1st in NFL

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