This is what the Disney website has for the deluxe resorts:
Value season for 2003 is 1/1 - 2/12, 7/4 - 10/1, 11/2 - 12/19
Regular season for 2003 is 4/27 - 7/3, 10/2 - 11/1
Peak season for 2003 is 2/13 - 4/26
Holiday season for 2003 is 12/20 - 12/31
the Value resorts:
Value season for 2003 is 1/1 - 2/12, 8/24 - 10/1, 11/2 - 12/19
Regular season for 2003 is 4/27 - 8/23, 10/2 - 11/1
Peak season for 2003 is 2/13 - 4/26
Holiday season for 2003 is 12/20 - 12/31
the Moderates:
Value season for 2003 is 1/1 - 2/12, 8/24 - 10/1, 11/2 - 12/19
Regular season for 2003 is 4/27 - 8/23, 10/2 - 11/1
Peak season for 2003 is 2/13 - 4/26
Holiday season for 2003 is 12/20 - 12/31
Since this is for 2003 I would hope that their info is correct