I am still in the process of learning maya, have a question about maya...

so far i have learned how to model from polygons , create polygon tool , NURBS surface and ep curve

my question is which tool do i use to create things like human body and cars , things that have alot of curves.

i can create rigid objects like funiture by combining and sculpting polygons , but when i try modeling face with basic polygons i get very unrealistic and rough models

when i use NURBS surface i cant combine it with polygons and other NURBS surface , its like i feel that NURBS surface is lacking some functions that polygons offer. EP curve produces NURBS surface , am i wrong?

so issit possilbe to sculpt from a raw polygon shape ? pulling vertex and stuff