Panasonic GM1 compared to NEX-5R. Should I consider switch?

I have a GM1 and a 5N (not a 5R but for all intents and purposes the same camera).  They both have merits, though these days I grab my GM1 with the Lumix 20 f1.7 ii as it has autofocus and is tack sharp wide open.  The only autofocus lens I have for my Nex is the SEL 10-18, otherwise I am usually using manual focus lenses on all my bodies.

Handling: The Nex has the viewfinder which you can tilt all the way up as well as the swivel LCD screen -these are invaluable to me when shooting since it's much easier to be stealth when you aren't looking at the subject.  The GM1 is tiny, smaller than it looks like in these pictures and I find I need the attached handle to get a solid grip on it.  Having said that, it's very easy to hold in one hand since it's so light and it's very easy to shoot with.

Focus assist: On the GM1 it is very VERY easy to zoom in for focus assist when using manual glass.  You just double tap to zoom into whatever area you want to check, it's very intuitive.  I don't have a 5R so I don't know the touchscreen functionality for focus assist.

Size and lenses: If you are looking for autofocus and small size, I don't know what beats the GM1 with the 20mm f1.7.  As you can see in the picture it's very small and compact, and I much prefer the images that come out of this than the RX100.  There are simply more lenses for M43 that are compact and autofocus than available on the Nex.  The GM1 is tiny, that's why you get it.  The Nex is also a system camera but the lenses are rather large comparatively.

Crop and image quality: Sure you get a 2x rather than a 1.5x.  I never had a problem with either you just walk back and forth a little bit.  But what was surprising to me was that looking at full sized images zoomed in there is little difference between the two bodies.  Of course the large sensor gets slightly lower noise but...in all honesty it's not like the jump from aps-c to full frame, I really don't see a difference between m43 and aps-c.

I think if it's your only camera the Nex is the better system camera since it has the viewfinder and is a bit larger of a camera.  These days though the Nex bodies are backups and I either pickup the GM1 if I am headed out and need a small camera, or the A7 if I need full frame noise quality.  I sold my RX100 once I opened up the files on my GM1, it's very good.  The GM1 with the 20mm is pretty amazing, I would very happy with it as my only camera and it's very compact.