The Saints and the Colts are the only NFL teams left undefeated at 7-0 , so its unavoidable for the media to start to figure out who is the better team, when both teams are playing their best football it is tricky to compare them especially when they have played against different  schedules but im writing this to throw my humble opinion into the air.

 My take on Offense so far(is early this could change):

Both QBs are having great numbers when they play good so lets look at how are their numbers when they have a bad day : Manning bad day = 347yrds 0 TD; Bress bad day= 3int and a couple of fumbles, Colts with the edge here. If we need to rely on the running game to win, saints have a slight edge, but none of this offenses are based on running.

My take on Defense so far(is early this could change):

Both defenses are playing great but they operate different.

Colts D = fewest points allowed and multiple 3 and outs , last game a complete shutdown of the offense in the 2nd half.

Saints D they allow 3tds per game on avg and rank 15th in ypg and look good cuz they compensate with pick 6s and that my friends are fortunate events, last game int on their 1yrd line is an example of many.

what is better a defense that let the opponent get to their 1 yrd line and relies on an int to save the day or a defense that prevents their opponents to get into the red zone?

I believe if each team play  each other to their strengths and weaknesses as they are right now  the Colts should have the advantage.