For a 20,000 polycount character any box modeler would do for morphs.
but for a 60,000 polycount character box modelers are worthless.ya need MudBox.

Uh.. No.

Many polygon modeling apps have perfectly serviceable mesh sculpting tools. One does not need a specialized sculpting application primarily designed around micropolygons for producing very high res models for normal and LOD instances...

Hexagon, for instance, is buggy, old as heck, based on obsolete code, but still has very powerful and extremely handy sculpting tools.

The key is always, of course, a modeller's skill with a particular application, not the application itself. Though, for modeling morphs for high-poly figures, like V4, an application with mesh sculpting tools is highly desirable.