There isn't a single compact camera in the market that can come close to
the night shots of the fujifilm F series camera... not even Leica D-lux 4
Thats my take....
Depends on what you are comparing. If you look mainly at sensor noise under the same settings then yes, that statement is very likely true, but if you consider other factors, such as aperture, speed of focus, focal length + aspect ratio, shooting modes, image stabilization, ease of settings etc then the LX3/D-Lux 4 is a lot more attractive.
I owned the F100fd and then recently switched to LX3. The LX3 is definitely an easier and enjoyable camera to use for night shoots (and most other shooting conditins). Back to sensor noise, if you have to use ISO400 on F100fd for a particular situation but the supporting features on the LX3 allows you to use ISO100 then the sensor noise concerns are greatly eliminated.
Lens wise, both are really sharp.
You can check out my recent LX3 shots here:
http://www.clubsnap.com/forums/showthread.php?t=507437
The combination of f/2 and IS helped capture very clear handheld shots. The day time shots are taken from within a moving taxi, and the night shots are mostly taken handheld. Camera settings were ISO100 and aperture priority mode. Anotherthing very impressive about the LX3 is the metering and WB. All but the last 2 night shots are straight from camera. I don't believe I could have captured those with the F100fd.
Another feature of the LX3 worth mentioning is the lens distortion correction that is built in to the JPEG convertion engine.