This is for geeks. In each case I am showing (1) the Olympus out-of-camera JPEG followed by (2) Colorchecker Passport JPEG from RAW in Lightroom 4, and (3) Adobe Standard JPEG from RAW in Lightroom 4.
Yes, there are subtle differences, but I only notice it on larger sizes. To my way of thinking "the differences between them don't make a difference."
Below is one example. See! No (significant) differences.
The rest are on my Web site here: