If I were to submit my Power Rankings right now, the Houston Texans would sit on top. I am sure many Atlanta Falcons' fans will dispute my claim after the Falcons took down the San Diego Chargers on the road. And the Arizona Cardinals were also extremely impressive Sunday, but I still have questions concerning their offensive line and quarterback situation.

Until Arizona answers those questions to my liking it's going to remain outside the conversation when I'm talking about the best teams in the NFL.

By contrast, Houston looks to have the AFC South all but wrapped up -- after just three weeks.