That's kind of subjective as everyone's touring style is different. But here's what I'd do:
Have your FPs for early, say 9:30-10:30, 10:30-11:30 and 11:30-12:30. That way, you'll use up your first three earlier in the day and you'll have more to chose from once you're eligible for a fourth, fifth and so on.
MK
FPs- Mine Train; Peter Pan; Space Mountain
Go right to Splash and Big Thunder at rope drop.
AK
FPs- Everest;Kali; Safari
Go right to Dinosaur at rope drop. You can even stroll in a few mins after opening.
DHS
FPs- Rockin' RC; Tower; Star Tours.
Go right to Toy Story at rope drop.
Epcot:
Depends when you go. Will Soarin' be back open? Will Frozen be debuted by then?