Theoretically typing, I love the Wintec. Without this fabu company making decent saddles affordable, a whole pile of us would never have been able to get into jumping, dressage: we would all be bareback. But moving from a Wintec to a leather saddle is like moving from a rented apartment to your own cozy home on the lake. A saddle that fits your horse and you is like coming home.
My favorite "good" dressage saddles were a Keiffer Aachen, a Jaguar, and a Neidersuss (not sure how it's spelled). My least favorites were a Steubben Tristan and a jumping-style Courbette.
My dressage instructor, whom I adored, had the Tristan, and I once made the comment that I really hated to sit a regular trot in it, as it was so uncomfortable. The next lesson was 60 minutes of stirrup-less sitting a regular and extended trot non-stop on the lunge line while doing stretches and toe-touches, and around the world in the saddle...... Ouch!