Most of my work up until 4 years ago was with sgi kit, so a lot of my presales demos involved Alias Wavefront Power Animator, which later became Maya. We used to have to build very differnt demos for different audiences - the games companies always wanted polygons, but the film companies were big NURBS fans. I guess with the power of render farms these days, folks are going more to sub divs, but NURBS ruled back in the day

Unfortunately I can't get a free licence version for my O2 I have at home, and I don't like it on M$ so my (very amateur) modelling doesn't happen often any more.