As the second system I have a Leaf Aptus 75 digital back on a Linhof Techno digital view camera, most of my landscape photography is done with that system. It would have been deadly expensive unless I had bought almost everything second hand. I like the quality for landscape pictures I get out of my Canon too, but use the Linhof to get movements (shifts and tilts) on all focal lengths and it's an all-mechanical camera (shutter and all), using a loupe on a ground glass to focus. I like getting back to basics, but without having to mess around with film, it's really fun to work with.
Images get very sharp of course, the "large format" lens designs (only primes of course) are near distortion-free, have large image circles (for shifting) and very sharp, with the drawback that largest opening is only f/5.6 and there's huuuuuge vignetting on the wides so one needs center filters and correct for color cast. The same designs would not work for a hand-held DSLR.
The slower workflow has also made me more thoughtful about the pictures, so I get home with fewer but higher quality pictures which makes me spend less time at the computer, which is great. However now when getting used to the Linhof I also work in a similar way with the Canon when out doing landscape, so one does not necessarily need a slow camera to work slow
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