Fior me, a figure is "well supported" when I have all of the things for it that it takes to make it useful in "a common-place setting." For me, this includes underwear, bathing suit, both casual and formal shoes, Jeans, tops, shorts, a suit (males), a professional wear set (females) and enough skins (4 or more) so that they all don't look related.

I will add one comment to the discussion of free content: Please. Either make it completely free to use in commercial content, or don't release it. It is too much trouble keeping up with restrictions, so I don't download "free" content that is not truly free.