The rack rates for the DVC Villas are REALLY expensive!!
You may want to consider staying in one of the family suites at All-Stars Music or Art of Animation, and then visit a bunch of the DVC Villas to get an idea of what each one is like.
Even if you do stay at a Villa, I would still tour a few of the other DVC properties to help you decide on your Home Resort...
AKV and BLT are VERY different - and while BLT does have a better location transportation-wise, AKV is simply AMAZING ...
Good Luck!!