Just for the heck of it, I took Poser 6, dropped V3 in it and zeroed it, switched poser units to feet, and it reads that V3 is 6.2 feet tall.  I used a horizontal plane and raised it just above her head and read the Ytran.  Did the same with:
M3: 6.5'
Aiko 3 LE: 5.7'
James: 6.5'
Jessi: 6.0'  
(I don't have other figures handy here at the office)

They're a bit taller then what most architectural standards consider the average male and female (I think by about half a foot - going from memory and not having the standards in front of me)  So, as for standardizing things, if people used normal architectural units and standards, and use Poser's internal conversion, objects should come out pretty proportionate to the figures. 
One can always scale down the figure a tad, rather then scale up all the props...

For example, 1 modelling unit on my last project may be 1 foot, so when importing into Poser, I need to keep in mind how many Poser native units are in one foot, to get a conversion factor. (I need to look up how poser native units compare to feet and meters)

Hi, my namez: "NO, Bad Kitteh, NO!"  Whaz yurs?
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