rx100 the one to beat?

If you value night shots (High ISO) shots. RX100 is the camera to beat.  so far LX7 does not hold a High ISO value close to the RX100.

100% zoom is also much much better because of larger sensor.

bounce flash is a definite plus.

size is also smaller.

manual focus is a joy to use in the RX100

good luck on your decision.