I'm more concerned about playing the Chargers, Ravens, and Broncos more than anyone else. I don't fear the Colts, we dominated that game in Indy for the most party. If Laurence Fumble Maroney doesn't fumble at the 1 yard line as we are going in for the kill TD, we easily win that game.
The Chargers have the offense that could make our life a living hell. They'd be able to move the ball on us pretty well. Rivers is an elite QB, LT and Sproles is a good tandem, and their WR's are 6'5 matchup nightmares, and their TE is another matchup nightmare. Their defense has the potential to be great with Merriman English and Phillips at OLB, Jammer and Cro and Cason at CB. Weddle is a good safety. They've got 2 good CB's who they can put on Moss and Welker, and a good pass rush.
Ravens as I said earlier are a veteran group on D who knows what it takes to win. Getting Suggs back is a boost, and Reed coming back will be a big boost as well. Their CB's are hurt, but they have a great pass rush and played us very tough in Foxboro early in the season.
Broncos scare me because they have a coach that knows our offensive system and our tendencies on both sides of the ball. Marshall is one of the hardest WR's in the NFL to cover, Royal and Gaffney and Stokely round out a solid group of WR. They've played well on defense this season and Champ Bailey basically took Moss out of the game early in the season. Granted Brady played poorly vs Denver but they've played well overall on defense this year with the addition of Dawkins and the emergence of Dumervil. The only good thing about them is that Orton isn't a great QB. I think we could confuse him and force him into some bad decisions if we show up on defense.
When I look at teams that concern me, I look at teams that can shut down Moss with one guy. Teams like Denver with Bailey, the Jets with Revis, the Chargers with Jammer/Cro, and maybe even the Bengals with Hall are all teams that have the potential to give Moss trouble with just one guy on him. The reason the Jets don't scare me as much as some of these other teams that can shutdown Moss is because the don't have the QB to consistently put points on the board and move the chains. I don't think they'd be able to score with us.