I feel much more secure and balanced in a dressage saddle than anything else. There are many subtle shape differences between them, so best thing to do is go to a tack shop that has several and sit in them all.
I love the Wintec Isabell (narrow twist), but not so much a fan of the other Wintec dressage models (for me - many people like a wider twist). Some people like a deeper seat, others like flatter. I do like Wintecs and think they fit some horses well, but not all horses, even with the changeable gullets. It has to be the right shape too. I also don't like the CAIR system at all, but they do still come in wool flocked too, it is just harder to find since the CAIR seems to be so popular.