I'll agree with the above post.  Lighting is not only key but one of the hardest things to do correctly.  I'll sometimes spend as long or longer balancing lights as I do setting up the scene.  Setting up a set of lights in Vue that's similar to the Poser 3 light set isn't hard though if that's what you want.
     In general you should find that Vue lighting is easier to do and that the combination of Vue lighting and the Vue render engine produces much more realistic results.