Taking out all of the bias as an actual Atlanta Falcons fan, this game is among the three best rivalries in professional football. You could make the argument that it is among the top 10 best rivalries in all of sports.
There are certain characteristics that make a rivalry great – frequency, proximity, bragging rights, and competition are the four most important aspects of any good rivalry and the Falcons/Saints has them all.
Packers v Bears and Browns v Steelers are the only two rivalries in the NFL that should be ranked above the Falcons v Saints.