October used to be a great time for crowds and weather. The weather can be very good or can get on the hot side still. Still potential for rain in the afternoons but does change over to the drier patters this time of the year too. Food and Wine has been discovered over the past few years and the crowds are getting very large in Epcot and even the other parks (from what I hear). DVC resorts are generally 100% booked well in advance of October where it used to be easy to get a room.
We have a place in Orlando now so we don't need to worry about booking a room and we were here for all of Food and Wine. This year, the crowds were busy, but seemed worse last year. This could be just because we had more opportunities to get to Epcot. Honestly, we never went into the other parks this year so I can't say how busy they were. The weather was very good this year IMO.