Most of the belts I've used were cotton (maybe all of them), certainly my BB is. I prefer them, too. I prefer the beefy feel of the one I have over some of the less expensive ones, but that's a personal preference.
All our belts are cotton. Personally, I like the Eosin Panther belts with two sided embroidery (I have English on one side an Hangeul on the other), but they're kind of pricey. It's debatable if they're worth it for a belt that'll only be worn a year or so.