I can speak directly about comparing the VPI Classic & MoFi ultra.
Had the opportunity to demo the Ultra in my system. I have a Classic that’s 6 years old.
Its automatically unfair because the MoFi comes with MM cart, and I have a decent LOMC.
IMO however, out of box the MoFi is certainly nicer looking and performs better than a price competitive Rega or Project. The supplied cart is nice, but you can hear its limitations,being a MM cart. I have a phonostage that can put a cart in its best light. If you get one, and already have a favorite. cart, buy it without the cart.
I think if I mounted my existing cart to the MoFi, it may sound close, but the VPI would audibly(subjectively) sound more convincing(perhaps the mass build?) Aesthetics , the VPI gets my vote. The MoFi still has a budget table look.
A used Classic/Scout w a decent cart IMO, is the better performer based on cost/sonics.