I need fabric advice

[Terri]

Almost every salesperson has a different version of what fabric is the most durable. Most of them agree that a blend is the best but that's where it gets confusing. Many say rayon should not have the highest percentage in a blend and that polyester should. But another thread said that polyester will pill. Some told me you can't go wrong with an acrylic/polyester blend. They also said that rayons are beautiful but will stretch and not hold up as well as some others. What about olefin? I know without seeing the fabric it is hard to advise, but can someone give me some general idea of what fabrics to look for in a blend? (no leather please) It will be put on a sofa that will be used a lot by my husband who has a disability and can be a little rough while moving on it. So I want to stay away from delicate fabric. Any help woud be appreciated. Thanks