Based on stats the Pats are 7th in the league in total offense. SD, Denver, Indy, Houston, Dallas and Atlanta are all ahead of the Pats. Granted it is only week 3, but still. I would say that the Packers and Saints all have a better offense than the Pats. I would say the Pats are in the 6-10 range in best offenses in the league.
I honestly think the Patriots have the best offense in the league other then Indy (maybe). When the Patriots clean up the offensive mistakes like penalties, they are almost unstoppable against most teams. Watch the Pats destroy Miami's D next week.
(Vikings fan here)