Which part of 3D animation is more scope pre-production, production or post production?

All are important and they all are important for future as it is the basic pipeline of animation

Dear Amit, If one need to produce a 3D animation output ( Movie , with animation and all ) , then he must go through the entire pipeline , as an artist if you have an idea of the entire pipeline then its really great, but normally a person works in only one or 2 domains in a project , hence he need