Resort wise I have only tried the HGVC ones. They are good, however some(not all) are imposing a daily resort fee of $25 when booked through RCI.
There are many other resorts and I guess others are nice too.
We have stayed 2nd week of October a few years back imo the weather was on the colder side, too cold for us as we like to go swimming and that’s too cold in the late afternoons.
If you are going to gamble or visit sites then October will be fine.