|Is Sony NEX 7 the best mirrorless camera?|
Let's start off with the price. The 24MP Sony NEX-7 with a kit lens (18-55mm) is $1,349 at Amazon.
The 16MP Olympus OM-D E-M5 with a kit lens (12-50mm) is $1,299.
The 16MP Fujifilm X-Pro (body only) is $1,699.
This alone doesn't tell the whole story about what you get. You also have to take a look at lenses because they are interchangeable for all of the cameras. I want to point out some decent lenses for each camera.
The first lens (other than the kit) you'll want to get for the Sony NEX-7 is the upgraded lens Sony 16-50mm f/2.8 Standard Zoom Lens for Sony A-Mount Cameras. This fast lens enables you to easily freeze action, which is great for photographing sports.
The first lens you'll want to get for the Olympus E-D5 is the Olympus M. Zuiko Digital ED 45mm f/1.8 Lens for Micro Four Thirds Cameras.
The first lens for the Fujifilm X-Pro is the Fujifilm XF 18-55mm F2.8-4.0 Lens Zoom Lens.
Now all of these lenses are not cheap. The lens for the Fujifilm X-Pro is downright pricey at $699, but well-worth the investment. If you've ever investigated the resale values of good lenses, you'll note that they are very good, that they don't lose their value very fast if at all.
So what camera should you buy? It's a tough choice. Overall, I'd go for the Sony NEX-7. You can also consider the earlier model, the NEX-5, which is considerably cheaper and not all that much different of a camera than the NEX-7, except it has considerably less resolution, though ample, than the NEX-7.