Well, first for saddles, make sure to try them on for you and your horse and like MIEventer said, make sure to have a professional help you. Most trainers can help fit a saddle to the rider, but are not trained in fully and properly fitting the saddle to the horse.
That said, as for brands, there are a few I've had experience with. Personally I prefer the Bates, especially the basic Caprilli CC more so than the newer ones. Either way, I highly recommend going with either a dressage saddle or CC saddle, and not an AP. I find most APs in an effort to blend the two styles, put the rider in a chair seat and off balance.
I'm not a fan of either Pessoa or Stubben, as the Pessoa's are just okay quality and you're paying more for a name than quality. Even their new gullet change system in my opinion w/o the CAIR is just sub-par. The Stubbens are better quality and will last forever, however they tend to be stiff and the flocking I've had issues with in the past. However please note that that was an older Stubben and I can not speak to the newer models by personal experience. I always prefer Bates. Wintecs are also nice, if you are okay with the synthetic. They are great for schooling, eventing and trail riding and are super low maintenence which I love, but personally I'm a leather girl ;)
Good luck - and make sure to have a professional saddle fitter check the fit of your saddle!