I've heard of Braque Francais. They are suppose to have great noses and great family dogs, but alittle timid. I would love to hunt with one if I get a chance. I guess the only way I would consider to purchase a dog will be to see the parents really hunt. I'm not dead set on getting a setter but the only breeds I've hunting with are britts, pointers, and setters. Out of the three, the setter suited me best. The only yard stick I have is field trial lines. Here in west wash they use retrievers and springers, so even GSP are rare, the only ones I've seen are AKC show dogs.
If you want to know about Llewellins (correct spelling) go to
http://www.llewellin.com/whatis.htm
Kind of biased opinion but AKC doesnt recognised the breed but FDSB does.