My choices.........didn't answer the poll..........
January-Feb are good times for crowds but the weather can be iffy.
March-April.......no, to many people....spring breaks for the schools
May ...........is a great month, Flower and Garden Festival at EPCOT
June- August..........way to hot and humid and TOOOOO many people!
Sept. ........is still pretty warm and humid but the crowds are thin.
Oct-Nov...........the later in Oct the better the weather, not as humid, not crowded until Thanksgiving week, and of course the Food and Wine Festival at EPCOT!
December.......I really like early Dec because Disney really does the decorating up right , although the weather during Dec. can sometimes be iffy also.
If I HAD to choose it would be Dec. or May