I just returned yesterday - here is what we did.
Thursday, July 31 - Magic Kingdom. It was fairly easy to get on rides. We arrived just after opening and got right on Space Mountain. It was crowded, but nothing like other days.
Friday - morning at EPCOT and afternoon at MGM. EPCOT was practically empty and MGM was moderate. We walked right in to see Beauty and the Beast.
Sunday - Animal Kingdom - moderate crowds. Were able to get the most popluar rides done in the morning with no FP. Did FP for Dino ride.
Monday - MK. Hell on earth. Several other people on this board report the same. It was too crowded. Stay away from Tommorwland on days like this!
Thursday - MGM until 3:00, MK until 8PM. Both were pleasant. MGM was pretty crowded by the time we left but not unbearable. We were able to get in several rides and FP for Buzz.
Have fun!