NavySubGuy wrote:I am NOT saying one is better than the other but I would like to understand why one would choose fiber over resin or visa-versa?
In two words: aesthetic preference.
On one hand, rooted hair should
look more realistic because, well, real humans have hair consisting of individual "fibers", and scaled figure heads with rooted hair try to model that.
On the other hand, since these head are smaller, the fibers should also be proportionally thinner. It's not always possible to make them thin enough, and with hair too thick the illusion of realism can fall apart (which may be less of a problem with 1/6 but more noticeable in 1/12 scale).
Sculpted hair tries to solve this with high level of details and paint application, to various degrees of success. But no matter how successful the result is, it remains static, capturing only one particular hair arrangement and requiring swappable parts to change looks. And sculpted hair can get in the way of articulation. Some complex hairstyles can be more easily modelled with resin than with "real" hair, however.
It seems common to use sculpted hair for stylized looks such as figures of animated (or video game) characters.
I've also seen an opinion that rooted hair makes the head doll-like - and since action figures are not
dolls, rooted hair is unacceptable. Since I'm trying to make this post somewhat neutral, I'll refrain from commenting on what I think of this opinion
It brings up an interesting question of distinction between "figures" and "dolls" - but that is a subject for another thread...