So I just got a new x-e3 and tried the same 3 lenses on them. I am getting better results and the corners are good enough at 2.8. I think the sensor was off a bit on the other camera? Still, it did not improve as much as I hoped for. Leica quality is not a myth and their lenses are much better than these XF 1.4 flagships. I am not trying to be a snob when I say that, it is simply the truth in my experience. But of course, I wasn't expecting Leica quality at this price point, so I am happier I am getting more fair results for this price point. However, I am going to sell the 35mm Fuji and get the Zeiss Touit. I have seen direct comparisons and the Zeiss is sharper at the corners. Definitely worth the extra money. I will say, those Fuji colors are not a myth either and better than Leica's.
lleo: I have heard somewhere that fuji quality control is not so good. Your experience, my experience, that the other poster on this thread with that weird bendy corner on his lens seems to support this claim.