I can't compare b/c we have never been to WDW in October but we have been in May and loved this time of year so much we will be returning next May.
What we loved about May-great weather, less humidity than our usual summer trips, Flower and Garden festival is beautiful, parks still have good hours-they dont close too early as they did in off season and much more.
Maybes another DISer than comment on October so you can compare the two!
