<p>Sanford, I still use M43 (EM5) but have grown very fond of the Fuji XE1 (currently only with adapted lenses). Basically for me it's the sensor and files, which are far better for my purposes from the Fuji. Lower noise, better shadow detail recovery, etc. However I like the IS of the EM5, love it for macro/close-ups and for 'play' such as shots with camera movement. And the 45 and 75 Oly lenses are excellent. However for a light, quality kit my ageing frame can carry into remote places, the Fuji wins.</p>