Yeah, I find that problem with blender's UV Mapping too.
Quote: "Select all the top faces from your pizza, and look at it from the top view. Press U, then select 'project from bounds'. That will unwrap the faces you selected together from the view you're looking at them from."
Won't that only work with vertain objects? Anyways, does something like wings 3D or anim8r UV map proportionally? I think I should just export the models from blender as a .obj or something and then reimport them into another thing like wings 3D, and then re import/export back into blender when I'm done, unless there is a way to have proportional unwrapping straight from blender?