The render UVW template function is one that comes immediately to mind, allowing very quick template rendering of your prepared UVs, either in wireframe, filled, mapped or shaded versions.
There are dozens of other features within Autodesk 3ds Max that will help you produce stunning 3D models without tearing your hair out. If used in conjunction with another function, Show Edge Distortion, then the mapping of your characters becomes all the easier. What’s more, Autodesk 3ds Max now contains more flexible options for Relax, the tool that averages UVs and allows for the automatic relief of texture distortion. Besides the standard mapping tools, the application now contains all manner of alignment features to ensure that you get pinpoint accuracy when modelling. Autodesk 3ds Max allows you to be very precise when mapping your creations.