So what is the best setup for landscape photography?
This one is easy :-). A technical camera with an IQ160 back (IQ180 is just more colour cast issues), or if not too fixated with having lots of pixels a 33 megapixel Leaf Aptus-II 7 (you can make quite big prints with that too, and has excellent performance with technical lenses).
Landscape photographers used 4x5" and 8x10" view cameras back in the film days not only for the resolution, but for the movements too. I think having movements is an important part of landscape photography, but as always it depends on your artistic style.
The tech camera should be a model with built-in tilt function as it is important for high resolution landscape photography if you open shoot open scenes (which many indeed typically do). Pancake cameras are easier to use, but I kind of like view cameras (I use a Linhof Techno myself) which have more flexible movements and considerably cheaper lens mounts.
A Nikon D800E is an excellent budget alternative, but the limited availability of excellent tilt-shift lenses does not make it as nice as the MFD tech cameras for landscape. For deep DoF images I don't think there is any "look" advantage of MF systems.