The debate over the NFL's greatest defense has raged for some time. Fans in Dallas are squarely behind the Doomsday Defense. Minnesota had the Purple People Eaters, while Chicago had the 46. Still, in 2000, the Baltimore Ravens were as good as any in that group, and possibly even better. br br Statistically speaking, the Ravens' defense was without equal. Led by Pro Bowlers Ray Lewis, Sam Adams and Rod... see more