while it isn't as user friendly...
http://www.imaging-resource.com/
has been my comparison site of choice... they seem to attempt to be more consistent that the site you've mentioned... I went there and when I finally found two cameras they had pictures for they showed me one picture with a white background and the comparison from the other camera was the same random toys and such but snapped against a very dark background... While I could get an overall idea of how well a camera was working I can't compare two pictures when one has 70% of the background white as snow and the other is 70% forest green...Its a nice attempt by someone.. unfortunately they seem to have focused more on an easy user interface than they did on useful data to go with it.