The V has more power and better all around sound, but I can't enjoy it with my JH16 (HISSSSSSSSS).
The F has more digital sound signature than the V, its more in your face, but sounds great with my JH16, and with different players , I get the chance to try different SQ (Like Neutron, poweramp and my new addition Playerpro).
Freak, I will tell you, sometimes I hate the details I get from the F (so much info to process) , and prefer the Z, with its less fatigue sound.
If I to chose from the above (as to total package) the F wins.
In the end , the F is more detailed and more natural, but this does't means "BETTER".