I tested the following , Epson Exhibition Fiber, Hahnemühle Fine Art Baryta, Hahnemühle Photo Rag Baryta, Harman Gloss FB Al, and Ilford Gold Fibre Silk.
I used Eric Chan's ABW workflow and profiles. First of all, each paper produced wonderfully rich, full toned prints. I don't think anybody would be disappointed with any of them. The HFAB was the sturdiest. The HGFBAL was the thinnest, notably thinner than HFAB, strange as any crescent moons from rough handling would show up the worst on that high gloss.
Paper tone, from brightest/whitest to warmest:
EEF (almost blue)
HFAB
HGFBAL
IGFS
HPRB
Gloss differential, from barely noticeable to noticeable:
HGFBAL (you'd think it would be the worst, but strangely, it is in a league all its own. Yeah, it's there, but it is not objectionable.)
HFAB
IGFS
HPRB
EEF