I had one of the cheaper dressage wintec saddles a few years ago. To be honest, I really didn't like it. I felt like I couldn't feel the horse through it, and it never broke in. HOWEVER, I've ridden in the dressage Isabell Werth saddle, and that one felt great! I know you aren't looking for a dressage saddle, but I imagine the jumping saddles are similar. Try to get one that's the higher end of Wintec, such as the Wintec Pro Jump (the one with the suede seat).
I'd get a close contact saddle instead of an all purpose if you're going to jump. You can always lengthen the stirrups for flatwork, but you can't add more flap in front when you're going to jump. As I once heard, "all-purpose is no-purpose"
I had a wintec girth, and I LOVED IT! It was soft and squishy, I never had to clean it, and it's still going strong after years of use!
Wintec Webbers (the flat stirrup leathers) are nice in the sense that there's less bulk under your leg, so there's more close contact with your horse. However, they can look frayed and hashed after a while. Plus, sometimes they cause a bruise on my shin. I'm not exactly sure how that happens, but I've heard that it happens to other people as well... I still like riding in them though!
I hope this review helped! When it comes right down to it though, you should always get what YOU and your HORSE like best. Good luck!