My budget is around $500 to $600. I actually also looked at the rx100 but was more impressed with the sample images online of those in the list. But a lot of people are recommending it though.
I am not sure where you were seeing samples. The RX100 image quality is very high in terms of color saturation and noise control. Much higher than the smaller sensored cams. There might be better lenses, but Im pretty pleased with the sharpness I get from the RX100. It does not have wifi, however, though the mkii does.
DPR says RX100, too