Since AKV is one of the larger resorts, if it's full, you'll probably be most likely to find availability at OKW and SSR. Honestly, unless you have very specific location preferences, or need a certain sleeping arrangement (two beds in a studio at OKW, for example), or want a certain kind of transportation (boat, monorail, etc), other people's opinions aren't going to help a whole lot. There's no "best" DVC resort, or "bad" DVC resort. Outside of theming and location, the differences between resorts are mostly a matter of personal preference. Read about each of the resorts, either on wdwinfo.com or allearsnet.com, and pick the one that sounds most appealing to your family. The great thing about becoming a DVC member is that eventually, you'll get to try them all.