Drake, I would hit the following:
In the Magic Kingdom:
Pirates
Phantom Manor (and ride 3 or 4 times so that you can see all the differences).
Space Mountain 2 (DW said I turned green after we road it)
The Nautilus
The Dragon under the Castle
Disneyland RR (do it early because it gets crazy long lines)
Small World
Peter Pan (although we said if there was one thing we would give to DLPR from the US was WD-40 because ride squeaked and creaked. Oh, and escalators. The hotel had none.)
Big thunder Mountain RR. It was much longer
...The big thing at MK is to soak in how much detail there is. It is amazing. The brick paved Main Street is just amazing, and all of the little touches everywhere.
Disney Studios might be more your 6 year old's speed. Lots of kids rides, a Car's Land and Pixar everywhere. Do not miss Cinemagique. I wanted to see it but it was down for refurbishment. I was not overly impressed with the Disney Studios.
Also, walk into the Disneyland Hotel and take a big whiff of the air.