Since old greeks time professionist debates about Raw vs Jpg shooting. Platon on the left clearly signs you “high-quality” matters. Aristoteles answers him “stay on earth, do you think we have always time to process images which rarely gets visible better compared to the in camera generated jpg’s?“
May you can get a litle closer to the answer you seek by reading the RAW vs JPG test. It is a short but very interesting test that I found inside the E-P1 forum. Hope it helps all the present and future owners to make the choice.