Which Defense should I use? Week 14 NFL?

Of those three, the Saints have the best defense. The problem, even with Matt Ryan out, is that intradivision games can be unpredictable. Not that I think they'll lose to Atlanta. But, I would expect to see a game like they had last week against the Redskins as easily as we see a rout. Carolina without Jake Delhomme might be an upgrade. And, the Patriots have been very inconsistent lately. But, the Rams have been consistently bad all season. So, I think the Titans have the best chance of getting you good points this week.