Jets, Steelers, and Ravens seem like the most "solid" teams so far IMO, and none of them look really dominant while each has some flaws they need to address. In the NFC, I feel Green Bay is pretty good, but like Wofford says, the hype is a bit over-blown IMO. Apart from that, I have no idea. The Saints have had moments of brilliance, but Payton reverting to form from 2-3 years ago is worrisome, as are the injuries and lack of turnovers. Falcons look pretty good, but they feel like a team that maybe gets to the 2nd round of the playoffs right now (I feel the Saints are the same way).
I don't think we'll have any idea until week 10 or 11, and even then, we'll have the typical teams that burn out and surprise going into the end of the season and the playoffs of course.