i'm coming from Sony NEX... just want to share my thought with you and no hard feeling k...

i had owned an NEX7,NEX6,NEX5n previously and tried on all lenses except the recent 1018F4 and 35F18...

for lens/IQ, both is close if u don't zoom in/out at your desktop monitor... but once u zoom in, any fujinon lens killed every sony emount lens except the CZ24F18.. Fujinon 35F14 arguably par with the Zeiss 24F18...

viewfinder: the best part is fuji have the hybrid vf... but when comes to evf, fuji is slightly lag behind the sony when u move the camera fast although both are at same resolution... maybe the refresh rate? i'm not sure but it din really annoy me...

for performance purpose, Fuji is really good in lower light with high ISO... Sony recent sensor is great in low light but i would say Fuji handle low light is better... nonetheless, sony hybrid focus on its latest line up is really fast... XE1/Xpro1 lose on these... and Sony AF is much accurate overally...

for me, i love the vintage look of these camera... and it gives me a different experience of using a camera, is really big different with the NEX system especially u gain the full control on the camera without slowly entering to the menu and adjust...

functionality wise, NEX is much balance (you can't ignore when u r recording a video)... but i suggest don't be too fancy with the apps installing to the NEX.. it is not a smart phone or tablet... a lot of ppl got hang issue/firmware corrupted by keep install apps into that... it will even slowdown your camera when taking pic.,..

and not to forget, i choose Fuji is because is X-trans sensor... the way the camera render the image is just... i don't know what to say, it is something that NEX can't give me 

good luck in choosing yr next camera...