I'm currently rocking the Axum. I love this board. It's an awesome twin shape that can handle the park and all mountain riding with ease. It's very light and not extremely stiff. I was riding my Rome Anthem and now ride my Axum more (both great boards in my mind).
In terms of fast speeds and stability, the Athem will do better as it's made more for that type riding. The Axum can handle all mountain bombing as well, however not as stable.
I am able to ride my AXUM everywhere as well as my Anthem
I look at it this way between the two boards (used for comparison)
Athem: More for all mountain but can handle parks
Axum: more for freestyle but can handle all mountain