Through six weeks, it's kind of a fun and interesting season. 
Does any team look dominant?  I don't think so.
The one-loss teams are the Bucs and Colts (5-1), Steelers (4-1) and Packers (3-1-1).  All solid teams thus far but have any of them established themselves as NFL-elite through a third-of-the-season?  I don't think so.
I count 17 teams that are at least Good; and that doesn't include the Ravens, who I don't count-out just yet, or the Falcons, who have two impressive wins their past two games.