I have experienced both, Mia's first few months were at my parents and they had a dark brown leather couch, she didn't chew on it, but you could see the scratch marks from her claws, and I always kept her claws very trimed. Tried to cover the seat cushions with a blanket, she didn't have that! If anything it encouraged her to scratch at the couch. Now I have a microfiber, which I think is great. It's red and you can't really see the fur at all, although Mia doesn't shed really that much if at all. The best is how easy it cleans, especially if you ask the store to spray it, we didn't and it still cleans great. Mia even eats her treats on there and slobbers a little, and just a little wet rag cleans it up. I also vacuum it when I do the carpet. Pretty easy to mantain. Although I am sure leather would be good too, maybe just make sure it's a high quality leather, and maybe a beige color would show less claw marks than a darker color.