Even if these were equal in value, from what I've read, I'd get the HSU VFT-3 HO!! Entension, power (db output) and articulation\ onality all seem to favor the HSU (at $600 less)!!!
I'd have the VFT-3 HO ordered right now if the footprint could fit my specific floor space limitations (20" sq.), but instead I'm gong with the well acclaimed Axiom EP500 v2 (about $200 more than the HSU, but will fit my setup better)!