I'm from Jersery and have done both! I actually lucked out with my family last week in Aug 2011. We got down just before Hurricane Irene hit the NE and the weather was awesome!!! It was hot, but humidty was a lot less maybe because of the weather pattern - not sure. We walked on every ride, had no lines really anywhere and it was extremely enjoyable. Do note, we did have a brief rain shower here and there, but it was sunny most of the week.
I've also have done November a few times, but prefer to go after Jersey week, but before Thanksgiving. This is usually the slower week and again very enjoyable. Little to no waits and beautiful weather. Do note and caution, check calendar for Disney events!!!! Even ones that are not necessarily posted. We went last Nov-2012 and parks were super packed! Between marathons, F&W festival, Veterans Day, conventions etc., it was crazy. Had a good time, but would have definately booked the week after had I known all these events were going on. Thanksgiving falls very late this year and there is that extra week in Nov. which should be ideal if you decide to then.