Poser and DAZ Studio come with pre made content, and you can buy
a lot of stuff for it cheaply. It is quite OK for making still pictures on the
MAYA is a complex beast that comes with no content at all.
If you work as an animator with Maya in a studio surrounding you have
experts creating the models, rigs, blend shapes, weighting,. textures,
shaders, simulations, lights, render settings, compositing etc - as an
animator I only need to know the animation part of Maya.
Oh, and there is a render farm at my studio as well…
If you are alone at home you need to learn it all.
You need to learn how to model, how to rig, how to create blend shapes,
how to make UV maps, how to create textures, how to create shaders,
how to set up lights, how to do good render settings, how to split up
a render in different passes, how to combine it all again in Nuke or
something similar, etc.
There are some simple cartoony free rigged Maya Characters, but most
of the content is very expensive.
If you know your Maya you can do things way beyond what is possible
with Poser or Studio.
If you are new to Maya, there’s little you can do right out of the box
and you have a steep learning curve ahead of you.