I shoot a D7000 and a couple of D3S's and to me it seems as the D7000 Jpeg's are much nicer to look at out of camera than the D3S. Colors seem to be a bit more vivid and true, maybe a bit more saturated. Just an observation.
#4. "RE: D7000 Jpeg engine" In response to Reply # 3
Using the same value for any particular image setting on different types of camera will not necessarily give the same result, especially when (as in this case) their sensor and processor are of different generations.