Serfaces NUBS, Sub D, Polygons
NURB to ploygons should be converted to Sub D 1st, just because in any case it would convert much smoother.
Select convert- nurbs to sub and then sub to polygons.
Sub D is a good bridg because its simular to nurbs and its sumular to polygons
Adaptive on options to vertices in the option boxes:
this means that the polygon selected whenever its cinverted dosnt become dencer!