rx100 the one to beat?

Yes. There are several high quality small P&S cameras right now, lots of choices. I've had the RX100 sine the end of July 2012, it replaced my E-M5 and four lenses and, in my view, the only thing I really gave up is long zoom. Great IQ, terrific low light capability, conplete manual control and it fits in your pants pocket. Here's a good professional review.

http://www.luminous-landscape.com/reviews/cameras/sony_rx100.shtml

Good luck with your decission!

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Kirk