The NFL season is 13 weeks old, and nearly every division is still up in the air with five of the eight groupings either tied or within a game of each other. The other three divisions are still relatively undecided, with the New England Patriots holding the largest lead in the NFL with three games, so any unexpected loss by a first-place team could keep each division race tight until the very end of the season.

A few teams are receiving tantalizing division odds as an underdog, and this season could be a great opportunity for bettors to wager on a long-shot squad that is not traditionally in the playoff race. Let's take a closer look at the NFL division odds on the board and figure out which have the best value to bet on All odds come from Sportsbook.ag.

NFC East

Philadelphia Eagles: -160

Dallas Cowboys: +130

Thursday's Thanksgiving game will go a long way in deciding the winner of the division as both teams are tied with 8-3 records and still have two games to play against each other-that is football at its very best. The Eagles are a slight favorite even though they probably have the tougher schedule with two games against Dallas, a home matchup against Seattle and two road games against Washington and New York (Giants) to close out the year. At this point deciding on which squad to bet probably comes down to who you believe is the better team. The Cowboys, however, probably have the best value with a positive payout and a schedule that includes two games against Philadelphia, a home game against Indianapolis, and two road games against Chicago and Washington.

NFC North

Green Bay Packers: -1000

Detroit Lions: +400

On paper this division race is much closer than in actual reality. Green Bay currently has a one-game lead with an 8-3 record, but the two squads have been playing on very different levels. The Packers continue to dominate teams, while Detroit continues to squeak by with close victories. The schedule favors the Lions, who have games against Chicago (twice), Tampa Bay, Minnesota and Green Bay left on the schedule, while the Packers have a tough matchup against the Patriots looming and a road game against an underrated Buffalo squad. With that said, Detroit does have value at +400, but can you really trust them? This division race feels like a non-bet situation. Green Bay should win the NFC North, but wagering on it at -1000 is not the right price.

NFC South

New Orleans Saints: -250

Atlanta Falcons: +280

Carolina Panthers: +700

The NFC South may be the most interesting division in the entire league simply because of the "train wreck" factor. New Orleans and Atlanta are currently tied for the division lead with a 4-7 record and may be on pace to break the mark for worst record to win a division, which was set by the 7-9 Seattle Seahawks in 2010. New Orleans fell apart at home against Baltimore on Monday night and cannot be trusted. However, Atlanta closes out the year with games against Arizona, Green Bay and Pittsburgh and will probably end up with a 6-10 record at best. If you are looking for value, the Panthers hold most of it at +700 and with the easiest schedule of the bunch.

NFC West

Arizona Cardinals: -150

Seattle Seahawks: +300

San Francisco 49ers: +350

Arizona's defense is elite, which is a far cry from how its offense is performing without Carson Palmer and Larry Fitzgerald. The Cardinals were shut down last week by the Seahawks and could hardly move the ball. Both Seattle and San Francisco still have value in the division race as Arizona could drop four of its last five games of the season-they play Atlanta, Kansas City, St. Louis, Seattle, and San Francisco. However, both teams still have tough schedules to close out the year, and the safest bet is wagering on the Cardinals defense to lead the team into the postseason.

AFC North

Cincinnati Bengals: +175

Baltimore Ravens: +200

Pittsburgh Steelers: +250

Cleveland Browns: +800

The AFC North turned out to be the surprise division in the entire NFL, with all four teams currently holding seven wins during their first 11 games. The Browns have the best value-and easiest schedule-with games against Detroit, Washington, St. Louis and Chicago and could conceivably end the year with an 11-5 record. The Ravens have the toughest schedule of the bunch, while Cincinnati has a manageable road to the division crown with games against Houston, Tampa Bay, Pittsburgh and Cleveland left on the docket. The AFC North is a toss, but I see no reason to bet anyone other than the Browns at +800.

AFC West

Denver Broncos: -700

Kansas City Chiefs: +600

San Diego Chargers: +900

Denver is a huge favorite to win the AFC West with only a one-game lead and two games left to be played against Kansas City and San Diego. The Broncos will probably win the division, but there is really no value in wagering on it at -700. The team has struggled the last two weeks, and a one-game lead is not enough to justify giving up 7/1 odds against two very capable teams in Kansas City and San Diego. If bettors are looking for value, the Chiefs are probably the way to go, as the team has looked fantastic, outside of its loss to Oakland, and may be ready to make a deep playoff run.

AFC East and AFC South

No odds on the board

New England and Indianapolis currently hold a three- and two-game lead in the AFC East and South, respectively, and would need something unexpected to happen in order for each to lose their spot at the top of the division. The oddsmakes believe that each is such a lock that they do not have lines on the board.

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Read more articles by George Monroy