My favorite mirrorless cameras are the Olympus OMD and the Fuji X-Pro 1. They are very different cameras. The Fuji has great feel, a better sensor and image quality but autofocus is much slower than the Oly. I also like how the Oly has a rear tilt screen. It comes in handy when you are holding the camera above your head like this.
The Olympus has more variety in the glass dept these days. My two favorites lenses for the OMD is the Panasonic Leica 25mm f/1.4 and the Olympus 12mm f/2 (eg 1 & 2). The kit lens is not very good unfortunately.
Tough choices. Both are sweet. Check our Mari’s flickr photos. She’s shooting an X-Pro 1.