Help: I love M43 but on the edge

I'm in a similar boat. I have an a7 and a EM5 Mk2 and GM5.

I was completely in love with the GM5 when I got, came with me everywhere, files with the PL25 were great, granted it didnt look like FF, but it was def good enough that I wasn't complaining. Then I got the EM5 mk2, which is awesome, and gives me the little extra edge I was missing from the GM5 - IBIS, more controls etc. This past weekend, i was asked to shoot an engagement, so I brought out all three bodies, and while the images from the m43 systems were great, there were in no way close to a7 files imo. So while the a7 sat by it's lonesome for a couple months, after using again, I just can't get rid of it - The files are too amazing.

IMO just get/keep both formats. I didn't want to, but it's the only thing that's going to keep me satisfied.

M43 for the do everything tool, carry everywhere, speed, ease of use - just a great all around FUN camera to use. I can't stress the fun part enough, I really enjoy shooting with m43 - I really enjoy shooting with the em5 as it's capable of doing sooooo much.

A7 (or another FF) = flat out image quality. There are literally files that come out of my a7 that make me stop what im doing, just to sit there and admire the results. Yes, they are THAT good. Some good news for you (sucks for me because I bought at launch), if you decide to pick the a7 you can get a body for fairly inexpensive at the moment. The other plus side to this is legacy glass on the a7 can be fantastic.