Favorite QS is Be Our Guest.... but it's not really quick.
Other wise it really depends on what you are in the mood for and where you happen to be in the park.
CHH can be a quite location at times, and a very different menu from most other locations in the four parks.
Ray's has a wide variety of items that most everyone can find something.... but it can be very loud, so we tend to avoid it.
Pecaso Bill's is probable my favorite...
But wife and kids like Pinocchio for the flatbreads.
And then there is something about those mini corn dogs at Casey's