I haven't heard anyone say the Lions are better than SF or Philly. I have hoped they might end up with a better record than SF or Philly since those teams both had first place schedules and have tougher divisional opponents than Detroit.
At the start of the season I had the Lions winning 11 games. With four games remaining, they are still on track to win 11. (I know there is a lot of handwringing, but I don't see them losing even one game to Minnesota, which struggled to muster three points against the Raiders today.) I don't see them being a threat to Dallas, but Denver is a tossup.