I'm referring to an inquiry about a comparison between
AdobeRGB and ISOCoated (in a thread nearby).
This can be found now here for the actually recommended
CMYK space ISOcoated_v2_eci.icc (2008),p.26 to p.34:
It's obvious, that AdobeRGB is rather good for further
conversions into this CMYK space.
It's also obvious, that the nice & smooth gamut boundaries
as found in programs like ProfileMaker5 are somewhat
More insight - beyond 'bigger gamut = more pleasant' -
can be found in the excellent book by
Jan Morovic (with a-acute and c-caron)
Color Gamut Mapping
In his PhD thesis (ten years ago) I found this nice motto:
Time wounds all heels (Groucho Marx).