i'm asking because i'm not shure if the defaults are the best.
every camera has its own desire of capture sharpening to reduce the AA filter softness.
so maybe there is a tested adjustment for sharpening which is ideal.
Well, all I can suggest is try changing stuff to see if it improves! From my point of view, the E-3 default settings provided by Aperture work fine. As I said before, reducing the Boost can sometimes help with very high contrast images. And using a different camera in those situations will help even more....
Just as an illustration, Aperture does not provide a default for the Ricoh GRD DNG RAW files - and they look pretty awful, until you sort out the RAW fine tuning. So this does tend to illustrate that for know cameras, Apple have actually done some useful work.