So, to answer the question posed at the top of this article: The Fujifilm X-Pro 1 certainly gives the Leica M9 a run for its money. I compared images I shot a couple of years ago with the Leica M9 with those shot at similar ISOs with the X-Pro 1 and the X-Pro 1 was, to my eye, the clear winner depsite its smaller sensor. On the other hand, while the Leica M9 lacks the X-Pro 1's AF capabilities, it has no discernable lag time while the X-Pro 1 has some lag time under bright sunlight (otherwise it's fine). The M9's brightview viewfinder's focusing system, once mastered, is outstanding, but doesn't provide as much information as the X-Pro 1. The M9's optical viewfinder is brighter than the X-Pro 1 and its coverage is better, but the X-Pro 1 has one of the highest-resolution EVFs available so if you're in the pro-EVF camp, that's a big advantage. Exposure controls are comparable on both cameras and size and weight are similar. Want video? The Fujifilm offers 1080p HD video. The Leica M9 has none. Overall, finally, Leica has serious, if imperfect, competition.
Via Thomas Menk