New Orleans Saints vs San Francisco 49ers: Who has the better defense?

Ahead of the week 14 matchup with the San Francisco 49ers and a head to head with two of the leagues best defenses, we look at who has the better defense.
Have you ever heard the phrase “defense wins championships”? This is a motto for the San Francisco 49ers, who currently hold the spot as the NFL’s best defense, and the New Orleans Saints, who are also an NFL top-ten defense.
Looking ahead to Sunday, the New Orleans Saints will welcome the San Francisco 49ers into the Mercedes-Benz Superdome.
This is already a matchup that will feature two of the NFL’s best teams and two of the top five in the NFC. The 49ers lost a heartbreaking game to the Baltimore Ravens on a game-winning field goal and dropped from the NFC top spot to 5th in playoff rankings.
Among the hype for this game, these two teams have two of the top 10 defenses in the entire NFC — AFC and NFC.
When the 49ers battled the Ravens last week (another matchup with two great defenses), the teams scored 37 points total, which was among the lowest of the entire week. This showdown between the Saints and 49ers will prove to be just as much of a defensive battle as offensive.
With the number one NFC seed on the line, which defense will get the job done? Where do these defenses stack up in history? Let’s get down to it, which NFC powerhouse has a better defense?