Of the Epson papers, I mostly use Hot Press Natural and Velvet Fine Art. Both are very high quality papers. (In addition, I print a lot of B&W on Hahnemühle Bamboo, which has a very long toe and a soft warmth to it.)
For glossy in the Epson line, I like the Exhibition Fiber paper. It reminds me of a Kodabromide Rapid F paper that was dried without ferrotyping. There may be better glossy papers, I don't use glossy surface enough to know all the best there.
G