I like mine, and am looking forward to my X-T1 ...
Options for me are really leaning towards the Sony A7, the Olympus E-M1 and the Fujifilm X-T1 ... as they're all priced basically the same where I park it ... and small enough to carry around. Add a nice prime, weather-sealed of course, and I'm good to go. Only, there are no weather-sealed primes for these camera, or are there?
It's hard to find plausible-looking information about whether the Sony FE primes are weather sealed (some say they are, others say they aren't, still others say they are, somewhat), but even if they were I doubt they're up to E-M1 or even E-M5 standards. If they were, you would think Sony would make a big deal out of it. As for Olympus, the excellent 60mm macro is weather sealed, but I don't think their other primes are.
Re Sony A7 vs Olympus E-M1, the Olympus is one of the best designed cameras around and it has the virtue of the best (in some ways, at least) range of native lenses of any of these compact systems; it really is a pleasure to use. But if image quality matters a lot (i.e., if you don't print small and like pixel-peeping), the A7 is unquestionably better (the A7r even more so) than the E-M1 in that regard, the relentless protestations to the contrary on 43rumors notwithstanding. And since the image quality of the E-M1 strikes me as no better than the E-M5's, it made little sense for me to replace my E-M5 with an E-M1, especially given that the A7 costs more-or-less the same as an E-M1 (for me, the only advantage of the E-M1 over the E-M5 is the bigger viewfinder; the other "improvements" are all fluff).
The Fuji looks nice, but I hope the image quality is notably superior to the X-E1's. It could be that the copy I bought was defective, but I don't think it ever created a really sharp image, regardless of light, if the subject was more than a few yards away, and while it's true that even their RAW files have low noise, it's pretty obvious that they achieve that by applying heavy noise reduction that you can't avoid; you can even see this via dpreview's comparison tools.