I've found a lot of customers seem to prefer the feel of the CCM SB 4.0 and VH-Step holders, citing the holders feel stiffer and seem to transfer energy transfer.
I will admit that the CCM 4.0 holders, being one of the few modern-height/pitch holders available to us that can take aftermarket steel, has a serious advantage for customisability.
If you don't swap steel frequently, like the pitch of Edge/4.0 holders, and want Step or BlackEdge steel, this would be the route to go.