If past history repeats itself, SSR GVs will be open at 7 months out the entire month. AKV Kidani also presents a good chance with some risk otherwise for some days between the beginning of Columbus Day weekend to the Tues of the weekend after that. AKV Jambo may be somewhat more iffy even for some other days in the month. Booking as many nights as you can at each resort now and then change one of those later is the best strategy because the fewer days you have to get at 7 months out, the higher the chance of finding it open. If you want to book now at only one resort I would likely choose AKV Kidani because it has the higher risk over SSR of being unavailable for multiple days at 7 months out, but the lower risk of being unavailable for one or two nights in relation to Jambo.