I just got a Fuji X-e1 with zoom and macro lenses to use as a hiking camera (it is much lighter than my D800e, and really increases my potential range)... I made my first prints from it yesterday, and discovered that, at 16x24 inches, I actually preferred the results over my D800e. That wasn't all THAT surprising - the Fujinon lenses are known to be excellent (I prefer the Fuji 18-55 over any other zoom I've used, including the 24-70 f2.8 Nikkor, and plenty of reviewers have found that zoom to be a fully competitive pro-level lens), and the resolution shouldn't have all that much of an effect at 16x24, because the Fuji has plenty of resolution for that print size.
I then decided to be really unfair to the Fuji, and printed 24x36 inches. This thing looks like a compact camera, right? No way it'll do 24x36, right? Well, it did! The prints are a little fuzzier than D800e prints from a distance of 6-8 inches, but not easy to distinguish even from a foot away... They're as good as I got out of a D3x, and I shot that beast for years... The workflow was to convert the raw files in Capture One 7.0.2, then send the 16-bit PSD files (ProPhoto colorspace) over to Lightroom 4 for scaling and output from the excellent print module in Lightroom.
If I'm getting fully credible high-detail landscape prints at 24x36 inches from this tiny camera, why do I have the Nikon? I don't care about the AF difference - the Fuji is fast enough for me... I'm actually seriously contemplating trading my Nikon gear in for more Fuji equipment - I'd add an X-Pro1 to my bag (I need two bodies if I'm going all x-system, and I like the versatility of having one of each), adding a 14mm wideangle, and perhaps adding a 35 f1.4, mainly for the subject isolation afforded by that maximum aperture!
What am I missing here? I wonder about dynamic range... Lab tests say it's close, but the D800e (which has superb DR) has a slight edge. Is it really close? I haven't run any sort of serious DR test, although the depth of the shadows in the Fuji prints impressed me.