We're all set for the College Football Playoff semifinals on Dec. 31 between Michigan and TCU (4 p.m. ET) and Georgia and Ohio State (8 p.m. ET).

If Georgia can't capture its second consecutive title, it'll be because of a difficult draw. The Bulldogs are going up against the high-flying Buckeyes, who snuck in following Utah's annihilation of USC in the Pac-12 Championship Game.

The winner of that game will play either Michigan, which will be trying to complete what it couldn't a year ago in its second straight CFP appearance under Jim Harbaugh, or the nation's biggest surprise of the season in TCU. The Horned Frogs lost the Big 12 Championship Game in overtime to Kansas State but still got in to the playoff.

There will be plenty of analysis of the matchups over the next three-plus weeks. But if you want to know who will win each game, it's a matter of which team can attack and exploit the other's weakness and which teams' strengths continue to shine.

Here are the strengths and weaknesses of each of the CFP final four.


Georgia's Strength: Relentless Rushing Defense Leading Aggressive Attack

The Georgia Bulldogs are strong in every facet of the game, which is why they're the overwhelming to repeat as national champions. Despite losing so much talent last year, the Dawgs are dominant yet again.

While the offense has done much more this season to bring along the younger defenders, Georgia's biggest strength once again is a fast, aggressive defense that has improved as the season progressed.

To open the season, Georgia smothered an Oregon team that wound up 15th in the latest CFP rankings. Later in the year against Tennessee, which had consistently shredded defenses, UGA was able to rush three and get pressure, blitz often and still be athletic enough on the back end to keep Vols receivers in front of them.

If Jalen Carter isn't the best defensive player in the nation, he's second to Alabama's Will Anderson Jr. He leads a defense that is first nationally in rushing defense, allowing fewer than 77 yards per game.

Georgia's front seven is even better than that, though. They allowed just 2.97 yards per carry during the regular season, sixth-lowest in the FBS, and they also have a 31 percent pressure rate, according to ESPN.com. Even when they aren't getting sacks, they still harass signal-callers.

Georgia's offense is excellent, but its calling card is still that Junkyard Dawg D.