Which QB should I start?

Only two teams have allowed fewer fantasy points to QBs than the Saints who have given up 2285 ping yds and 7 TDs to QBs all year. The Bears have only allowed 2583 ping yds and 9 TDs to QBs; they also 16 INTs. The Falcons, on the other hand, have allowed 2908 ping yds and 20 TDs to QBs. Right now, the difference in performance between your 3 QBs is 0.3 pts/game from the top scorer (Palmer; standard Yahoo scoring) to the bottom (Freeman). I would definitely be playing Freeman this week, especially since the game is in Tampa and the Falcons are a better home than road team.