I wasn't sure where to post this since the question involves two brands, but the title says it all. I have a friend who wants a decent but very pocketable camera for all-around use and to have with him most of the time. He's looking at the Fuji XQ1 now that it can easily be had for $299. I told him to hold off for a few days so I could ask the best and brightest at PL if going for an original Sony RX100, of which brand-new examples can be found on eBay in the $350-$375 range these days, might be a better option. The Fuji is smaller, less expensive and features phase-detection autofocus. The Sony RX100 is, well, the Sony RX100 with all that implies. There's no doubt both cameras can take great images and there might not be much difference in good light. I guess the question would be value, low-light performance (both in terms of noise and autofocus) and possibly overall responsiveness. I can't get him interested in any of the more-expensive iterations of the RX100 - or really in anything beyond $400 - and I hesitate to recommend something like one of Panasonic's ZS/TZ series of travel superzooms.