We did what tomu suggested for two trips but tried a different way this past time. I was always grumpy trying to get around to things in AK in the heat and so this time we tried a different approach (and I felt like we did less walk/running for FP, etc.)
We started out in Dinoland! Dd was 7 so we got on Triceratop Spin first and stayed on three times in a row without getting off. She loved it! Then onto Dinosaur with no wait. Leisurely walk to TH where we had 10:30 ressies--when are yours? We really enjoyed the food and characters here and got to sample breakfast and lunch because they were late seating us even though we were 30 min. early.
While dd and I were waiting to be called at TH, I sent dh for FP for the safari. The time was up just as we finished eating and I felt like we saw just as many animals at noon as we had previously in the morning. Then we got EE FP, went on the Tiger trail, rode EE, saw Lion King and called it a day. Finally it was a relaxing day at AK!! You may want to work Nemo into your plan since your little ones haven't seen it yet. It's worth seeing once.
Now I realize we didn't see everything that day, but some we already had, and others we'll save for the next trip. Just take your time here and enjoy the beauty and the fun shows like the African drummers/dancers outside Tusker House.
Have a great time!