In Epcot, we like Sunshine Seasons (Land) because there are so many different stations. Everybody can find something they like (sometimes too many things) so you don't all have to be in the mood for the same thing.
In the MK, our choice is usually Cosmic Ray's for the choice thing. But we often go to Columbia Harbor House instead. Nice quiet area to eat upstairs.
No real favorites at AK - pizzafari and Flame Tree are usually a coin toss for us.
At the Studio? We usually avoid CS there.