I think you need to detemine how big a factor WAF is. I like the PSA subs, but the design is somewhat industrial looking. The SVS subs, IMHO, are a nicer looking product but you pay more. PSA, to me, is more about price to performance.
So if WAF is not an issue, I would focus on PSA vs Rythmik FV15HP.
At $2K you are also in dual Hsu VTF-15H territory.. I would recommend dual PSA XV-15 or dual Hsu VTF-15H subs if you can swing it.