Since you are renting a car, if I were you I would try to get the resort that most appeals to what you like or want out of your vacation.
Having the car will spare you any waits for transportation, so if one of the resorts that is out a bit further (AKV) is something you think you would like to try, then go for it.
We rent a car when we go, and we have stayed at OKW, SSR, AKV, BWV's. For me, I would prefer BWV or BC when we in October, being able to walk over to EPCOT for the F&W festival makes it so much more enjoyable and relaxing. If I was buying at this point in time, I think I would go Beach Club strictly for the location, although we have never stayed at the resort.
My daughters favorite resort is AKV, and since we have a car we dont have to worry about WDW transportation. That is not a slam, because when we have used it, I thought they did a good job. But, if your kids are tired, or having a meltdown, nothing seems as long as waiting for a bus and then having a full busride back to your resort.
The convience of the car makes this something you should choose by where you want to stay the most. With the kids, I suggest trying AKV, our daughter loves it. The points are reasonable, and this will be our third October there - great resort