All 4 games have the road teams, who are all lower seed, as favorites for the games this coming wildcard weekend.
Falcons are favored by 2 1/2 over the Cardinals in Phoenix.
Colts are favored by 1 1/2 over the Chargers in San Diego.
Ravens are favored by 3 over the Dolphins in Miami.
Eagles are favored by 3 over the Vikings in Minnesota.
I don't track these things historically, but I can't imagine that there was ever a time when all the lower seeds were favored. If I were a betting man I would take the Eagles, Ravens, Colts and Cardinals.
Eagles are playing well now and are a good matchup defensively for the Vikings. They can walk extra guys up to the line of scrimmage to stop the run and have sufficiently talented DBs to handle a mediocre passing attack led by qb Tavaris Jackson.
Chargers are a funny team - they were only 8-8 but they lost 4 games in the last minute by only a FG. If they get on a roll they can score a lot of points. I like the Colts.
Ravens will beat the Dolphins - their defense will hold down Pennington and they will score enough points against the Dolphins to win going away. Ravens might make it to the Superbowl.
Falcons and Cardinals are too close a game to feel confident about. Cardinals have played poorly since they had the division clinched, but they play well at home and have a lot of talent at the WR position.