Magnatraction or MTX isn't all that, as it makes it how to be, I demoed one, sometimes it holds its edge really well, sometimes it feels like you're catching mini edges all around. Libtech has a way wider range of rocker boards, like 90% of their boards have BTX on it.
I've heard the Burton Hero is a great rocker board. I don't think you can go wrong with it.
Have you considered other companies rocker boards, like Never Summer, K2, Capita, Nitro, etc.
You should really try and demo Libtech, they should be well available at places that demo, there seems to be a Libtech hype going around. Their boards are also friggin' expensive upwards from like $425.