Yeah the Riders Choice is definitely not that soft... similar to your Custom-X. The rome agent and ride dh are similar boards - all the people i know with either love them.
If you get a BTX board (I ride a GNU Street BTX 157... basically a skate banana) just remember that it rides in pow like a longer board, but turns on packed like a shorter board.
ie: a 156 BTX will ride pow like a 159 regular board, and feel like a 153 regular board in the park.
and support independent snowboard companies, not ski companies that own a snowboard division.