I stayed at the nearby Wyndham & would recommend you drive yourself, particularly if you are limited on time.
As stated above, there are no buses from DTD to a theme park - you must transfer from a resort (not recommended, very time-consuming!). The village bus system is a mixed bag. The buses themselves are a touch nicer than Disney buses inside, with cushioned seats and music playing (which really helps keep the crowd quiet!). However, on the flip side, the buses usually stop at all the village hotels on route to the parks, so that always adds another 15-20 minutes onto every ride.
If you do use the village buses, pay close attention to the posted schedule. Buses run more frequently at certain times & some parks are serviced more frequently than others. Be especially careful reviewing the water park schedule.