Some do actually have issues, for example Crystal Archive seems to suffer from green (highlight) /magenta (shadow) crossover. For digital printing it doesn't matter at all because they supply the paper with calibration data so it always comes out of the lightjet looking good, but you get issues under the enlarger.
Originally Posted by DREW WILEY
For lack of (Portra) Endura sheets, I've found the Aristacolor paper to be pretty good for optical enlargements. I haven't done side-by-side comparisons, but I've found it a bit easier to print with than FCA. I suspect it is Supra Endura but don't know for sure.