I've been using mf towels for quite a few years now and early on collected many different brands with different blends. Some of the towels blends that I have tried are 70/30, 80/20, 85/15, 90/10 and some that simply say 100% microfiber. These towels have been made in Italy, Sweden, Spain, Korea and China. Prices have ranged from $1 - $20 for a small towel and more for the large size towels. It's amazing how different thay can be. Some have that real 'clingy' feel to them while others feel like a regular towel. Many leave lint. Some went immediately into the rag bucket.
It has been my experience that my favorite towels are the 70/30 from Korea, although I still don't really understand the what the various blends have to do with it. And I do have some 70/30 towels that are terrible. The 85/15 blend from Spain is a very good towel, but I haven't been able to find them in the U.S. I think the biggest difference is how the material is manufactured. The poorest quality towels invariably have been made in China.
Recently I've stopped buying different towels to compare them and stick with just one brand. I can get them at a very good price when I buy them in bulk along with a couple of friends and I know I'm getting good towels in various sizes and in the colors I want.