Gamblers, unite! The Daily Dollar returns with a very special edition of NFL best bets for the AFC and NFC championship games. Watching teams battle it out with a trip to the Super Bowl on the line is more exciting when there’s a little scratch on the result. This week, we have a pair of rematches to drop some coin on. The early game features the upstart Cincinnati Bengals attempting to duplicate their thrilling 34-31 Week 17 victory over the Kansas City Chiefs. It will be a tall order, as Kansas City has represented the AFC in the last two Super Bowls. The Bengals have not been to one in over…