Serious compacts compared the image quality of the kit lenses of each mirrorless system:
Sony E 18-55mm f/3.5-5.6 (Kit zoom for Sony NEX cameras) tested on Sony NEX5
Samsung 18-55mm f/3.5-5.6 (Kit zoom for and tested on Samsung NX10)
Panasonic G 14-45mm f/3.5-5.6 (Kit zoom for Panasonic G1 (discontinued) and GF1)
Panasonic G 14-42mm f/3.5-5.6 (Kit zoom for Panasonic G2, G10, and GH2)
Olympus mZD 14-42mm f/3.5-5.6 (Kit zoom for Olympus Digital Pen Cameras)
Which is the best lens? Difficoult to answer because eveyr lens has it’s pros and cons. Check out Seriouscompacts to see all image samples and to read the conclusions!