I'd suggest riding Soarin' right at park opening, followed by Test Track (if open - it's closed till later in the year). If not there that early, FP for sure.
Spaceship Earth is great, but save it for later in the day when there is no line (folks tend to get in line for it right away, as it's the 1st attraction you see when entering the park).
Do not miss the American Adventure show - better yet, be there 15 minutes early to see Voices of Liberty (incredible vocal group).
The Circle-Vision movies in China & France are beautiful.
If the girls are into thrills, Mission Space is really pretty cool.
Even though it's a little dated, Ellen's Energy Adventure is enjoyable.
The food court in The Land has some good variety, the Electric Umbrella for burgers, Germany for brats, UK for Fish & Chips, & Mexico has a decent counter-service place now. Can't go wrong with any of the sit-down places.