Replying to Salomon SPK, Head MoJo or Rossignol Soft Boots etc.

Ok, I know there is a lot of threads on this, and I have searched but I didn't really find what I'm looking for so, heres the deal.

I'm getting new boots for the season and I have been looking into the SPK's, but I ride pow when there is and all mtn. but I'm mostly hitting kickers and rails and I'm a bit worried about the pow, all mtn. with the SPK's, since they are strict park boots and with the 0 degree stance and mad flex, so which one of the ones above will suit my needs better than the SPK's or will the SPK's be just as good as those?
I think that all will fit my foot so don't worry about that, or if one or more of them fit weird or something just say.
Can anyone help me out here?