Why is the EM5 so much more popular than the GH3?

Well, at the time I bought my E-M5, the GH3 had not yet been released, but I would make the same decision today.

The entire reason I switched to m4/3 from Canon APS-C was to drastically reduce the size, weight and complexity of my kit.

For me, the G(H[N]) series does not possess the one quality that drew me to m4/3 in the first place, small size.

If I were a videographer, I might feel differently.