NFL Power Rankings: How the final four stack up

New England at Denver. Arizona at Carolina.

The 2015 NFL playoff field is down to four teams. And yes, we're ranking them.

Did anyone do enough in the divisional round to knock the Panthers from their perch at No. 1? Who's the weakest of this heavyweight bunch?

Below is how ESPN's Power Panel ranks the four finalists heading into championship weekend.

Note: The comments below are provided by ESPN Stats & Information. For last week's rankings, click here.

1. Carolina Panthers

Record: 16-1 | Last week: 1

The Panthers have now won 21 of their past 23 games, including playoffs, but the Cardinals could be Cam Newton's kryptonite. They've blitzed Newton on 54 percent of his dropbacks in three career games, with Newton throwing one touchdown pass and four interceptions with 12 sacks against such pass rushes.

2. Arizona Cardinals

Record: 14-3 | Last week: 2

Carson Palmer notched his first career playoff win with a lot of help from Larry Fitzgerald, who has averaged 114 receiving yards and scored 10 touchdowns in eight career playoff games. Can Fitz keep it going against the Panthers? They allowed the lowest Total QBR (56.7) on passes to wide receivers in the regular season.

3. New England Patriots

Record: 13-4 | Last week: 3

Tom Brady is a different quarterback with both Rob Gronkowski and Julian Edelman on the field, completing 68 percent of his passes with a 79 Total QBR (as opposed to 60 percent and a 50 Total QBR with either off the field). Brady is also 11-5 in his career against Peyton Manning-led teams, but the home team has won each playoff matchup (four games).

4. Denver Broncos

Record: 13-4 | Last week: 5

The Broncos allowed 18.5 points per game this season and led the NFL in total defense. No Peyton Manning-led team led the league in total defense before, but no Manning-led team scored as few points since 2002. The Broncos did beat the Patriots earlier this season, albeit with Manning on the bench.