We stayed at OKW two Decembers ago. I hadn't been to Disney in a while (I moved to Seattle and it's harder to go from here). Anyway, the room was very, very large. Really nice actually. Nice big bathroom. The buses were ok; however, not only are there 5 stops, but they are spread out in a way that the buses have to wind and turn to get to them, and then after each one, the bus goes through a roundabout circle to get back out of that section. That was the worse part for me. Also, i really missed the themeing that goes along with non-DVC resorts. I've stayed at Port Orleans Riverside many times, and I really missed it while I was at OKW. I would stay there again, but only if we had to save money.
If you love AoA, I would suggest you stay there. I really wished the whole time that we were at OKW that I was at POR. Although, this last December, we stayed at the Contemporary and wished the whole time that we had booked OKW. Go figure. I think if you go very often, changing up where you stay can be fun, but when you don't go that often, I think it keeps the magic going if you stay where you know. IMHO.