I don't think you can go wrong with any of your choices. The SVS subs have a great reputation. I can only say that the Hsu will be more power than you'll need for your room and will sound great for both music and HT.
Jim
When I want to impress people, I put on the first scene in Serenity where they fire the rocket engines. When I have the volume up high enough, you can totally feel it.