Panasonic 7-14 F4 vs Olympus 7-14 Pro F2.8

I have found the flare of the mZuiko 7-14 Pro to be very well controlled, creating small spots that are easy to remove unobtrusively in many cases, when the shot is one that calls for spot removal.  It seems to handle flare better than the original Zuiko 7-14 from my limited experience with that older beast.

It's not perfect, and I doubt any UWA lens will be, but I have been very impressed at the limited flaring.  I had to go through a bunch of my recent photos to even find examples.  It definitely flares less than my 12-40 and my Rokinon Fisheys lenses.

The absolute worst example I could find

In fact, looking back I should've processed this one better.  But ignoring that, the flare happens to be over shadows, so I basically brightened it up to make it more visible.  I'd like to see any lens avoid flare in this instance anyway.

More typical example

I found lots of pictures like this in my collection, where the sun was either in the frame or just outside.  If this was a photo I was wanting to really polish up, I could remove the spots pretty darn easily without anyone being able to readily notice.

Obviously there are other reasons to choose the Panny or the Olympus, and again, I've never shot with the Panny.  But based on everything I've observed in this forum and elsewhere, if I were shooting an Oly body and wanted to minnimize flare issues, I'd go with the oly lens.