I think the following are "artistic" standards (which I found on Wikipedia, by searching Body Proportions)

The proportions used in figure drawing are:

• An average person, is generally 7-and-a-half heads tall (including the head).
• An ideal figure, used when aiming for an impression of nobility or grace, is drawn at 8 heads tall.
• A heroic figure, used in the heroic for the depiction of gods and superheroes, is eight-and-a-half heads tall. Most of the additional length comes from a bigger chest and longer legs.

These seem to be the standards used in the Poser-verse.

 

So it makes sense that I would prefer the "average person" proportions, because I usually try to go for a real-world look rather than an artistically ideal figure.

Interesting how we each have our preferences. It's cool that our tools can cater to them. 8-)