It is a matter of taste,But the Roland VK8M and the VR76 do not come even close to a Hammond,They sound great but they sound different.
I using at home the B4 with the Tyros and in my opinion after tweaking the Tyros drawbars (Rotary effect(16 type,s) and the EQ )you get a better result than the B4.
I also have the software from CD-soft and you wont believe youre ears.
On the other hand i played and listend to the New XK3 ,and that sounds like a B3 !
I am thinking to buy one .
The only thing i am missing on the Tyros are the real Drawbar sliders.
Btw on the VK8M you cant connect a footpedal for the Rotary speed,Strange?

Best Regards ,
Arno