Pt. 1 - Appearance and Zoom Range
Pt. 2 - JPEG Noise
Pt. 3 - ISO 80 JPEG Crops at 35mm & Full Aperture
Pt. 4 - Flare Performance
Pt. 5 - Noise Performance Revisited
Pt. 6 - G7 Default JPEG vs GX100 Silkypix Conversions
Pt. 7 - Key Timings
Pt. 8 - Build Quality, Quality Control, and Battery Life
Pt. 9 - Conclusion

In order to evaluate the flare performance of these three cameras, I took a series of photos with a strong indirect light source. In this case, I took a photograph of the shadowed side of a house where just above the frame there was strong light coming from a very bright, overcast sky.

Settings:
- JPEGs were compared. For the Leica and Ricoh cameras, I actually shot using the RAW+JPEG setting, but the crops you see are from the accompanying JPEG (highest quality chosen where applicable).*
- All settings (contrast, sharpness, noise reduction, etc) were at standards settings.
-Aperture priority mode was used to set the aperture at f5.6 (f5.8 on the Ricoh was the closest possible setting).
- Cameras were tripod mounted with self-timer used.
- All cameras were set to ISO 80.
- No optional accesories (hoods, filters, my hand, etc) which could affect flare were used.
- All cameras were set to 35mm equivalent focal length

Here are the images.

First the D-LUX2:



Next the GX100:



Finally the G7:



To me, it is clear that the G7 performance was the best of the bunch in this round of testing. It was the only lens to not greatly suffer from veiling flare and the substantial contrast penalty incurred thereby. The GX100, on the other hand, was the only one to be free of flare spots.