Based on point differential, it should be the Ravens, but I suppose the Titans have a good schedule:
5 Home games, including the Jags who they have beaten head to head @Jax and the newly awful Texans, plus the Ravens, Bengals and Rams. They have the Colts, Cards and 49ers, all on the road, which should be wins. They have a certain loss at Pittsburgh.
If they go 4-1 at home (Rams loss) and 2-2 on the road (Pittsburgh and a shart against one of the worst teams in football), they will be a 10 win team and almost a shoe-in for the playoffs.