The Hilton is a very good choice, not only is it footsteps away from Downtown Disney, it is also a very short walk away from lots of restaurants and shops at the Crossroads Shopping center. We were staying there 16 days, and we never had to rent a car or use a taxi to get anywhere, there is ample shuttles to the parks, walking distance to DTD and Lake Buena Vsista, frequent public transportation to International Drive. We even took a direct bus to and from the airport ($2 - a shame they canceled that service).
Not having to deal with shuttles to go to restaurants and shops was the dealbreaker for us - this hotel probably has the best location in Orlando.
Also, I must say that the rooms are big and comfortable, and the swimming pools and jacuzzis are very nice.
We are going back in September.