I have tried a lot of manufactures paper and I always come back to Epson. That's probably because I have Epson printers and I've always read that the best results come when you use the same manufacturer. Epson paper with Epson printers, Canon with Canon, etc.
I'm sure that's not always true but it does make sense they would work together better as I believe that paper and ink are matched.
I'm an Epson user and love the results. I use Epson Premium Glossy Photo Paper and my prints are stunning. I'm sure that has a lot to do with my printer, the R800. I did find my prints on Kodak paper were the worst of any paper I used.
I also discovered that the Professional Photo Paper sold by Costco is outstanding and very inexpensive and returns results similar to the more expensive Epson paper. I now use it for most all prints and save those I want the very best for the Epson paper.
As far as Avery products, I have always found them of good quality and consistent in their size and finish.

