NFL Playoff Predictions: Projecting the Postseason's Biggest Darkhorses

Which teams have the best chance to upset the Green Bay Packers and New England Patriots of the NFL in this year's postseason? 

Let's take a look. 

Oakland Raiders

Right now, the talk of the AFC West is Tim Tebow and the Denver Broncos. After winning six of their last seven, it probably should be.

Even coming off a humiliating loss at the hands of the Miami Dolphins, the Oakland Raiders are a team I wouldn't want to face in the postseason. They boast one of the best running attacks in the AFC, and we haven't seen Darren McFadden for over a month. 

Oakland has the speed at receiver to threaten any secondary with the game-changing deep ball, and the defense is respectable with a variety of athletes. 

In a cold, wintry battle, the Raiders' power running game provides them with the opportunity to spring a few postseason upsets. 

New York Giants 

The Giants have their biggest game of the year this weekend in Dallas against the division-leading Cowboys, and if they can sneak into the postseason as either the champions of the NFC East or in a Wild Card spot, watch out. 

There is a lot of playoff experience on the roster, and their talent at wide receiver is probably only matched by the Packers.

Eli Manning is playing arguably his best season as a professional, and Victor Cruz has really been a difference-maker.

Their defense has been up and down, but they do have one of the more vaunted pass-rushes in football, which has registered 33 sacks in 2011.

Denver Broncos 

Many people still don't have a great deal of faith in Tim Tebow, but I'm more enamored with the play of Willis McGahee and their stout defense. 

They've tailored their offensive attack around Tebow, and he's slowly improving as a quarterback. 

Although more teams are getting tape on the Broncos with Tebow behind center, their unconventional style of play can be extremely confusing. Add in playmakers Elvis Dumervil and Von Miller coming off the edge, and there's no telling what kind of damage the Broncos could do in the playoffs.