We often hear advice like ""choose your lenses and then choose the body that matches". We have great information on DSLR systems at How much do lens lineups vary across DSLR platforms?How much do lens lineups vary across DSLR platforms?, but what about for mirrorless interchangeable lens cameras (also known as compact system cameras and so on)?
How does lens availability vary for Olympus and Panasonic Micro Four Thirds, Sony NEX, Nikon 1, Canon M, Samsung NX, Fuji X, the Pentax K and Q offerings, and others? Are some of the systems particularly strong in certain areas?