We have gone at different times, as you can see from my signature, but we all agree...Oct-Nov is the best:
- Low crowds
- Reduced rates
- Good weather - warm during the day/warm enough to swim at night - very few rainy days
Bad thing - it is the end of Hurricane season. In our 9 trips we have had 2 'canes - nothing really bad though.
We did WDW for Christmas the last two times because we have always seen them putting up the decorations, but have never seen them lit. Now that we have seen them lit, we are going back to our Oct-Nov visits....
Good luck...