I recently bought a couple of packs of Epson Photo Quality Glossy Paper (141 gsm) and my general opinon is that it is rubbish. It feels far thinner than than it's weight suggests.

Currently I use Ilford paper (238 gsm) for personal use, not bad but I am still using my stocks of their pre-Galerie offering. This is on a HP 690c, it is getting on a bit but I would never by a HP again. (I now do 99% of my printing on my office printer, below)

At my office I use HP photo paper, glossy (175gsm) which seems to be quite a good paper, recommended for the price. I use this on a brand new Epson Stylus Photo R300 which is easily the best photo printer that I have ever seen, stunning results. However it's text printing is quite poor. It is very thirsty but the cartridges are quite cheap (although there are six to replace).

I have never used matte finish paper as I always think it is a bit too arty for my style of photography (usually motorsport).

Hope this helps, anyone else got anything to add?