I'm backing off the Texans now. Prior I was thinking if everyone stay healthy they will be a dominant force. However, I think they may have a similar fate as the 49ers. Teams who have a considerable jump from one year to another tend to regress big time. In addition, every statistical advantage would have to carry over, and I don't think it will. They may pull a Carolina Panther and make the SB, but I don't think their defense will not be as good as people think. I feel the same way about the 49ers. Their schedule is loaded with good QB's, but the difference may be that they are the best in a mediocre AFC South.
As for the Ravens, Flacco may indeed have a career year. He may be forced to if the defense isn't up to par which is likely. Plus, he is playing for a big time contract.
I'm still not buying all the Packer love.They were an overrated 15-1 team last season, and I think they will come back to the pack with like a 11-5 record or so. Their defense has just as many question marks as the Pats, but for some reason people think Aaron Rodgers makes up for that.