the walls are terrible in powder center mounted but a decent park ski. i dont really know much about the bridges but ive heard that they are a good all mountain ski. id personally go with the msps. theyre sick backcountry and on the groomers, a fun park ski too.
If you like stiff pick up the msps. Damn stiff ski that will ski anything and everything and still reasonably light. You can lap through the park a bit, carve hard on groomers, and they're alright in the pow. I love em as a tree ski.