The VTF-15H is right around $1000 shipped and the FV15HP is right around $1300 shipped. I think you need to decide how much you're willing to spend first and decide for yourself. I say if you can afford it get the FV15HP, if not get the VTF-15H. Really only you can decide, if this is your first real sub upgrade either will make you smile from ear to ear.
JTR Noesis 228HT (LCR)
Axiom Audio QS8 surrounds
Sherbourn PA 7-350
Falcon Screens FVHD105
Dual PSA XS30's (gone but not forgotten)