Originally Posted by DKo5
I took many comparison shots and videos during development to make sure both platforms were identical. In my findings there is some (extremely) slight differences in color temp (I guess due to how the systems output video), but as long as you've got your console set up properly for your display it should look the same. If the PS3 version is looking washed out then you've got something set up wonkily. Make sure to follow the brightness adjustment guide in the options menu.
And yes, on a lower end setup Full RGB _will_ crush blacks. It is not a foolproof "fix", as is the reference level adjustments on the 360.
In doing blind side by side tests at the office the ONLY person capable of picking the right version was the programmer responsible for a lot of the rendering code :P