Help me pick a week

[mermaid&cinderella]

I am starting to plan my next WDW trip.......woohoo

So we want to go do MNSSHP and I was thinking either 3rd week of september or last week of september or the first week of October.

Which is the best time to go and why?

I need everyones expert advice please.

 

[JohnnyB2]

Although we haven't been at those times in a while( kids in school )we used to really enjoy Oct. I know a lot of people on these boards say that Sept is very hot,but how much difference would a week or two make?