The reason we love WL and AKL is that we have the best of 2 worlds ---- we're obviously at Disney, but feel as if we're on 2 separate vacations because we retreat to the resort and feel as if we're someplace far away.
Besides having somewhat smaller rooms, those rooms are designed to accomodate 4 guests (no day bed), rather than the 5 that the Poly, CR, GF, Y&B, and Boardwalk can accomodate. You can book larger rooms at WL and WKL, but will pay more.
We do feel like we're more "in the middle of the action" at the Epcot resorts and sometimes that's where we want to be --- for a few days. When we stay at an Epcot or monorail resort, there's the sense that a variety of restaurants are nearby. That said, we always have a car, so when we're at WL or AKL we just jump in the car and head out to any restaurant we want to visit.
WL and AKL obviously have a HUGE number of loyal fans who love those resorts, but many people don't feel the same way ---"too dark, too far away, rooms too small, etc, etc, etc". Seems to me that it's simply a matter of personal taste and thank goodness Disney has so many choices so we can pick a resort to fit our mood and our wants/needs. If people do some research, check out the amenities, look at pictures of the resorts and decide the decor seems OK, I don't see how anyone can go wrong paying less $$$ for a room at AKL or WL. Sometimes you just don't know until you try it yourself.
Good luck deciding and have a great trip!