Sorry guys, I'd love to, but I've sold BOTH the cameras :-( to save up for a new DSLR (trying to minimise my spending). Don't have enough $ to keep even 1 compact.
If you see my earlier comparison, at ISO 400 even the ixus 850IS is better than the LX3's default output! Canon have been working on their compact image quality too.
But my opinion is that I'd prefer the LX3's output (noisy but detailed - impt) to Panasonic's past processing (everything obliterated). What you get is an unmatched 24mm f/2.0 with OIS. The output you just have to deal with in post-proc. (And down the sharpness for jpegs.)
Fuji has a distinctive fuzziness (opposed to the LX3's looks-like-USM patterns) which I don't like. The F31 is only clean at base ISO (100). The mantra for whichever camera would be, "use as low an ISO as you can". Thankfully, OIS should help in this!
Nitpicking aside, I must emphasise that all 3 cameras mentioned here are perfectly usable at ISO 400 IMO. And if I had to go to 800 to get the shot, I wouldn't hesitate.
In reply to the viewfinder posts, I also wish that the LX3 had some kind of VF, even though the ixus 850's is really tiny and disgusting. The LX3 VF is overpriced - I'd look at a Voigtlander alternative (still not cheap) or even make my own out of wire! Agak-agak oso can lar...
As for the Nikon adapters, thanks Dennis for the samples. Seems like your new one has quite visible CA?