the ravens haven't drafted well to put talent around flacco so everyone thinks he's awful. Now he's off to a nice start because...he's got some weapons. They've been able to keep the defense going with two great signings in the secondary. You're right about the packers and lions. Neither team seems to be able to find a run game to balance the offense. The year the pack won the superbowl they had a top 5 defense. The lions turn over coaches and systems along with their poor drafting and the losing just continues.
Belichick and the steelers always seem to get talent on their rosters to go along with elite qb play. guess who's in afc title games every year? them. same staffs and systems. draft well and you win games.