If I Could Only Have 1 Mirrorless Camera?

It would have to be the GH3. I bought a GH2 a 18 months ago and was amazed at the video capabilities of the camera but found the still results left a bit to be desired. The GH3 has even better video capabilities (beyond my current requirements) and the still results are sharper with less noise. I thought the camera would be significantly larger than the GH2 but I'm not noticing any difference in handling the camera.

However, in the real world there is no such thing as the perfect camera.