Transmapped Hair in any Poser renderer is a bummer. The really nice ones in Superfly are so resource heavy. Even some of the best realism renderer folks here bouts still suffer from occasional gift ribbon hair in their renders. Beware the stampede of Superfly hair renders forthcoming. For me I just use Firefly because that's good enough for my things, and I'm used to it. I spend most of my time creating dials and sculpting in other apps so being on the cutting edge isn't a priority. I'm also a Blender and 3DCoat user, and now DS. They all have fancy renderers. In my eyes the advantages are the nifty materials but that's coming from the perspective of someone who likes creating maps. If I'm going to make "a picture" I'll use Firefly. Some of the material tests I've done in Superfly and cycles have turned out pretty good, the grain in Superfly didn't really bother me but I use like 15 and up samples. If you're a person who primarily uses Poser to make pictures of content you've bought I can see the priorities, or if you're a content creator who sells their work getting on board with Superfly should be a priority probably.

As far as OP goes, Davo... if anyone is familiar with his work over the years he kind of has developed his own unique thing. I can generally recognize an image by Davo pretty immediately. It's a combination of things lol. It would be a little jarring (putting it politely) to see his work in a more "realistic" way... maybe not even advantageous to his oeuvre ;)