I discussed with AND Publishing different print media and the relative qualities offered by different sources:
Blurb Books – seems to be the overall best option for high quality POD especially photobooks. Print quality is good and they offer a large range of options including Proline which are premium heavier papers and finishes. They offer easy Adobe Indesign template downloads and I find this easier than using software offered by many others.
Lulu Books – Print quality average to good. Limited for photobooks, more for author books. I noticed they do a cream coloured paper for text pages. Lots of options for papers and binding.
Ubyu Books – Quality to rival Blurb with slightly different finishing options and nice touches such as marker ribbons. I printed 2 proof books with them and was happy with the quality. In my opinion price is high and communication was slow.
HP Magcloud Magazines – printed in USA but quick, full colour, good option for this format.
The Newspaper Club Newspapers – Great option for a lo-fi approach. London based, colour, B&W, cheap option for large multiples.
Much more info on AND’s website here