I've tried every one of these and that is the ugliest paper white I have ever seen in my life. I can't imagine who would use that stuff. Even Hahnemuhle couldn't tell me why is made with that pinkish-magenta cast. It is just really really odd.
The Harmon Baryta and the Harmon Baryta Warmtone are producing the most perfect gloss fiber I've ever seen and for me this is the result I've always looked for but could never find.Their first version of it was a little too glossy and rc looking, but now it has a great gelatin silver type of texture but without the over bluish brighteners of say the Innova Ultramooth and Epson Exhibition Fine Art that is deteriorating rapidly in the Aardenburg fade tests. The Harmon color gamut is better than any of the rc papers I use, as well as being sharper, and the bw is by far the smoothest with no bronzing at all on the Canon 8300. Neutral tone prints on that Harmon Warmtone are just fantastic for a pigment inkjet print.
I also like the Canson Platine and it's brightness is about halfway between the Harmon Baryta and the Harmon Baryta Warmtone. The Canson Baryta is nice and very similar if not identical to the Ilford Gallerie but on all my printers both have unacceptable bronzing for color and bw without spraying. In additon to that the Canson Baryta and Ilford scratch so easily I just don't use them anymore.
john