Hey there,
I'm not sure of default object size in blender, but with poser, and i'm assuming with daz, the models are tiny.
One way of working it out would be to import a poser, (or other), model into anim8or and use the size as a reference. You may need to convert the poser object into .obj format first.
Or, export anim8or object as .obj file, and import into poser, or other app.
Trial and error.
Anim8or itself is a fairly powerful piece of kit. You may find it good for what you want anyway, and not need to use any of those other programs?
.obj format is fairly common, and can be used for moving models into, and out of, a variety of software packages, including anim8or.