I haven't ridden any of those boards but I have heard that the Dominant is a little stiffer that most park/jib boards and I believe the Dominant Slick is a pure urban rail board but others can correct me if I am wrong. If your looking for an economical park/jib stick, I've been very impressed with my Nitro T1 and I run with Rome 390 Bindings.
My experience and what I do in snowboarding is really quite
independent of the industry and the more independent it is,
the more pure and better I feel about snowboarding.- Craig Kelly