I want to suggest to you Smartpaks line as well.
They have four different bridle lines, Plymouth being the cheapest, and Nantucket being the most expensive, and then the other two in the middle.
The Plymouth dressage bridle
Plymouth Dressage Bridle by SmartPak - Dressage Bridles from SmartPak Equine
And their hunter bridle
Plymouth Raised Fancy Stitch Bridle by SmartPak - Hunter/Jumper Bridles from SmartPak Equine
The entire Smartpak line all have really great reviews.
Also, I have a Suffolk that I school dressage in. Just for schooling, it's held up really well over the past couple of years.
Suffolk Black/White Dressage Bridle < Flash Bridles < Horse Tack|Dover Saddlery.