Those answering saints fans are dating themselves. Pre 2006, no one around would have answered saints as they were our whipping boy. We owned them under fox and before Brees.
Falcons and Niners fans are the more appropriate answers. Our history with the falcons has never faded. Also the proximity of the cities, the Vick years, and then Matt Ryan owning us in his bldg adds to it.
Answering cowboys and steelers is also acceptable just for geographical reasons.