We have gone in October every year for the past 12 years. We have watched the attendance go up too. We always go the last 2 weeks of the month. The crowds are at the moderate range. Manageable, especially with fast pass and arriving early. Some days are better than others. EPCOT can be very crowded on the weekends starting on Fridays, as F&W is a favorite time of the locals and CMs. My only suggestion is to stay away from Colombus Day weekend. That time is probably the worse weekend of the entire month of October. The rest of the month is comparable with the first 2 weeks of May and late April (we also go for 2 weeks late April early May every year--12 years now). You will seldom see walk on rides and the big tickets will always have waits, esp. test track, everest, RnR, and Soarin. We just returned from a quick weekend trip and the wait time for POC was 45 minutes.....and POC does not have fast pass, so you have no choice but to wait to see the new updated attraction (which is pretty cool).