The 3rd one is either placed too far forward or just doesn't sit right. I like how the 2nd one sits the best. It has the most gullet clearance of the three. The dressage also looks like it fits well, but ultimately you need to sit in each one. Put a white or light colored pad under the saddles, tighten up the girth and sit in each one. Check for appropriate gullet clearance, feel for side to side movement while riding and make sure you feel balanced. After you dismount, look at the underside of the pad. What you want to see is even symmetrical dirt spots and a clean area over the back area. Your horse looks like he's easy to fit, so it's probably just a matter of making sure you feel balanced. I tried a toulouse awhile back. I found the balance in that saddle to be very nice. It didn't fit my high withered horse, or else I'd own it.