Gauging the Cardinals, Packers and potential Super Bowl contenders in top-heavy NFC

The unbeaten Arizona Cardinals and once-beaten Green Bay Packers meet in one of the most anticipated Thursday night games in recent memory (8:20 p.m. ET, Fox).

But come Friday morning, there still might not be a clear-cut favorite in the NFC.

As the NFL nears the halfway point of its first 17-game season, the NFC features one unbeaten team and four with one loss. The Cardinals, Packers,…