Sketch Design styles and Photoshop filters are two very different effects. PS filters give a 2D render look and are more flat. SD renders over a 3D simulated surface, allowing style lines to curver around the 3D model and follow its form.

Try 2 similar sketch styles in PS and Poser SD and note the results.

Too, the SD preset styles in Poser 6 and 7 are the same stock ones found since Poser 4. Those stock styles are rather crude. Some are prone to edge/outline funkiness. This flaw has been eliminated in my SD products.