i have the targas and love them. they are by far the most durable feeling bindings i have ever ridden. like someone else said they are so customizable, not only for your preference and riding style, but also for your individual foot and boot. i really cant say this enough. you can do things like actually adjusting for different flexes on different sides of your foot. while i havent riden the other binders your lookin at, i can tell you that i have been nothing but happy with my targas. and as for stiffness, i was riding these when i was 270lbs and they were still plenty stiff for my free riding (they also didnt break haha).