Topic on Template talk:Input
With the ever increasing use of the controller's features in games, it makes sense to take note of the support for it. However it doesn't seem like enough to make the argument to list the two controllers individually on articles, unless the backwards compatibility for existing pages becomes problematic with the renaming of existing fields.
A live demo for these suggested changes is available at User:Shadowstealer7/Sandbox, with the template being located at User:Shadowstealer7/Sandbox/Template:Input, showcasing the new template in action with the changes and additional fields.