Its depended on the travel day we've had and the ages of the kids.
With our first trip we had young kids (2 and 3), an early travel day (like get up at 5am) and Roaring Forks was the perfect first night meal. Counter service in the hotel could only have been beaten by room service.
The next trip we also had an early flight, but the kids were now 4 and 5. This time we had a late lunch at Beirgarten - staying at the Boardwalk so it was easy to get in and eat. Kids got a few rides in, then we went back to the hotel.
The last two trips have been less successful - we tried to repeat our late lunch success with Beaches and Cream (again, staying at the Boardwalk) - with disasterous results - a really long wait, poor service and food that didn't meet expectations. The next trip we flew in the night before and stayed at the airport, and had intended on Flying Fish the first night - our kids now being old enough to handle signature dining well. But we had friends with us who didn't handle signature dining well (it would have been fine had it been us).
This trip its us again, and we are staying at WL - we aren't catching a plane until 11am (so we will have "slept in") we don't arrive in Orlando until 3pm. So the intent for the day is to check in, maybe swim, have dinner, swim some more. Artist's Point.
I don't like to wander too far from the room on a travel day with kids in tow. For us, expectations for that day need to be fairly low key. So we pick a restaurant within easy distance of the hotel.