We've stayed at the All Star Movies twice now and its one of our favorites!!!
In 2000, we stayed in Love Bug, and it was great. It really is just a short walk to the food court/bus stop; in fact, every night when we got back to the hotel, we would get our mugs and walk back to fill them! And, our room was very quiet - we never heard any neighbors.
In 2001, we stayed in 101 Dalmations and my 5 yr old was SO excited!!!! Even though we arrived around 12:45 AM and she had fallen asleep on the way from the airport, when she heard the CM say we were in 101 Dalmations, she got her second wind and practically danced all the way to the room! She hugged the little puppy by the TV set and had to play like she was on TV. (All this at 1:00 AM!!!) Again, it was a very short walk to the food court/bus stop, and our room was very quiet!!
I personally don't think its worth an extra $10 a night for Fantasia Bldg - all the rooms are a quick walk back to the main building.
Enjoy your stay!!!!