w go every october, and found that we prefer the earliest part of the month. the weather is a bit warmer (a few years ago, a cold front came thru while we were there at the end of oct.....we woke up to temps in the 30's

such drops might not be usual, but i refuse to take the chance again - i
need sunshine on the shoulders while on vaca!).
the crowds aren't bad, excepting EPCOT on weekends (F&WF), kids are in school, temps are normally in the low-mid 80's. oddly, there is usually a short rainshower (about 1/2 hour) daily around 4pm. there might be some lovebugs, nut not the swarms we usually found in late august/early sept.
this year, we are going sept 27-oct 6, time enough to enjoy the F&WF with lower crowds.