I do not believe they are the best defense in the league and I do not believe that 28 points was all they could have scored. If the Ravens had not played it safe in the second half, because short of committing turnovers there was no way the Browns were scoring 21 points, I think they could have easily had 1-2 more TDs. That being said the Browns look like the best defense because they played 3 bad teams. The Titans, Browns, and Steelers are 3 of the 10 worst offenses in the NFL. I would not be surprised if the 49ers hung 40 on the Browns. Whatever the line is for that game I am taking the 49rs (which is not saying much considering that they are the best in the NFC and possibly NFL).