By Cameron Flynn Here come the Dallas Cowboys. After facing criticism all season over the team’s performances against some of the NFL’s elite, the Cowboys officially announced themselves as legitimate Super Bowl contenders in Week 14 with a convincing 33-13 win over NFC East rival Philadelphia. Take a look below to find out where the Cowboys – and every other NFL team – check in on Athlon Sports’ Week 15 NFL Power Rankings. 1. San Francisco 49ers (10-3)Last week: No. 1Six words or less: First team to clinch playoff berth 2. Baltimore Ravens (10-3)Last week: No. 2Six words or less: Ravens contr…