However, the layouts for BWV, BCV and VWL are all the same. So maybe you heard that BCV, VWL and SSR were modeled on BWV. All were designed in the early 90's whereas AKV and BLT were built 15 or more years later. Like many houses built after 2000 the kitchens are larger, especially at BLT. And both AKV and BLT have full size refrigerators like OKW, I just wish they had the full size washer and dryer too.
There are essentially three "generations" of DVC units at WDW.
First generation: OKW. Very spacious units, arranged to give significant privacy, but a land-hungry layout. Full-size appliances (including ice makers in the fridge!). Much more like "other" timeshares in design.
Second generation: BWV, BCV, VWL, and SSR. These are all similar to one another, though there are a few differences from resort to resort. (e.g. BCV and SSR have more functional dining table designs.) Significantly smaller units---particularly in the common areas. Smaller appliances. Much more compact layouts (even at SSR, the unit density is higher). Essentially, Disney discovered during OKW's sales period that they under-estimated demand, and realized they could build smaller units and sell them for more, and get away with it.
Third generation: AKV-Kidani and BLT. In between OKW and "2nd Gen" resorts size-wise. Some of the difference is accounted for by an extra bath in the 1BR and 2BR units. Living space is slightly larger (to accommodate the sleeper chair). This design seems to be a recognition that many Members seem to book close to the upper end of occupancy to stretch points, and these units are a little more functional when they are closer to "full".
Edited to add: I've not yet stayed in a "3rd Gen" resort. But, our impression was that a 2BR at OKW would be fine for six, a little tight but doable for eight. The 2BRs at 2nd Gen resorts are fine for four, would be tight with six, and eight is hard to imagine.
Bill 
1987
