October is perfect, and your proposed dates are great. The only "bad" time is Columbus Day Weekend, which is the week prior to your visit, so the crowds won't be too bad. The next "busy" weekend won't be until around the 11th of November (Super Soap, Festival of the Masters, last weekend of F&W Fest), so things will be relatively quiet.
Expect the parks Friday night and all day Saturday to be saturated with locals. Sunday morning is generally dead, but around noon people start to show up. The weekdays will be noticeably less busy.
Of course, some cataclysmic event could occur between now and then that would make October the busiest month of the year. But I doubt it.