Hi,
I'm not sure if this will work with Wii Motes, but I've used this method with my PC gamepads.
You can rename your controllers using a simple registry change. I'm sure this won't damage your PC in any way. I'm not forcing you but if you want you can try this method :D
Go to search and type "regedit" then run it. Go to "HKEY_CURRENT_USER\System\CurrentControlSet\Control\MediaProperties\PrivateProperties\Joystick\OEM" There should be a few sub-groupes. Click those and see if you can find your controller names on the right side. If you do see your controller name in a key called OEMName, double click it and change your controller name. I found this method in a youtube video.
https://www.youtube.com/watch?v=nrT7WXFEEZI
Hope this helps :D