The xf, xs, and xv are all essentially the same thing....at least in the driver....specs are nearly identical....different paint schemes and sole graphics, is about it. The XV line does have screw weight adjustability.
Too lazy to compare the fwy's and hybrids, but suspect more of the same!
Hireko hasn't made a great driver head in years....the last one I thought was really good was the Avatar XMOI.....that was a helluvva head..,everything else has just been meh, IMO.