Welcome to Epic!
People seem to be putting Saloman STHs on Soul 7s (the Sin's bigger brother). It's a strong binding. Rossignol Axium seems common on the Sin, too, and I've seen the Salomon Z12. I can't help you with comparisons (perhaps @Philpug can help you there).
At your weight, you might want to calculate your DIN setting (the setting that determines how & when your binding will release, when necessary) first. Go here: http://www.mechanicsofsport.com/skiing/equipment/bindings/din-calculator.html Enter your information, and find your DIN setting.
Then choose a binding that will provide a DIN setting comfortably higher than the setting you'll need. If your setting is 8.5, for instance, you'll probably want a binding that goes higher than 10, perhaps a 12, or even higher. The binding name often includes the number (STH 12, Z12, etc.).