On comparing costs per point on a particular expense, like front desk/admin, I do think those are perfect examples of where the amount per point in our dues is affected by the overall number of points and their allocation to different rooms.
So, if you have two resorts with the same number and proportion of rooms, you are presumably going to need about the same number of front desk employees. But, if one resort has double the points the other one has (and rooms cost double the points), then you'd presumably see front desk expenses at the lower points resort cost twice as much as the other on a per point basis. I think that could going a long way to explaining CCV's low front desk/admin with all those point heavy cabins.
With HHI/VB, you're dealing with different labor markets (in addition to the different check-in procedures), so you're introducing more factors. May well have to pay front desk people more money in those labor markets than someplace like the greater Orlando area and it's presumably large supply of hotel/tourist/service labor.
Not justifying any of the numbers, just coming up with plausible explanations for the differences.