On imaging-resource.com you can compare pictures of a long list of cameras. Really helpful!
Go to Camera Reviews – Compare Images, choose the two cameras you want to compare and the same picture in both columns. Then click on Full Size Image for both pictures to compare the details side by side.
Left: Fujifilm X30, right: Canon PowerShot G1, both ISO 200:
Left: Fujifilm X30, right: Nikon Coolpix S9900, both ISO 200: