OD Modeler Primitives allows you to quickly create primitive objects that are UV and subD friendly. This is a Modeler plugin and also a generic Layout plugin. If called without arguments, a UI will be presented, however, it can also be called headless with arguments:
Options:
Name: The name of the resulting object
Type: The Type of object to create
Pivot X: Where in X space you would like the pivot created
Pivot Y: Where in Y space you would like the pivot created
Pivot Z: Where in Z space you would like the pivot created
Size X: The size in X (or width) of the object
Size Y: The size in Y (or height) of the object
Size Z: The size in Z (or depth) of the object
Position X: Position of the Object on X
Position Y: Position of the Object on Y
Position Z: Position of the Object on Z
SubDs: Whether the object is supposed to be a subD object or normal Poly Object.
Pie Command: The full command that could be used with ODPie Menu, or that you could map on a button to create a specific primitive
Here's a how-to video showing OD Create Modeler/Layout Primitives in action.