I have a registration form with a country select. Most of the users are from the UK, and then a way behind them are from Ireland. The rest of the world together are a very small proportion at the moment. Therefore I would like to put UK and Ireland at the top, as preferred choices:

    ->add('country', 'choice', array(
        'choices' => Locale::getDisplayCountries(\Locale::getDefault()),
        'preferred_choices' => array('GB', 'IE')
    ))

This works ok, BUT "Ireland" appears above "United Kingdom" in the separated, preferred options.

Is there any way to set the order of these so that UK appears top of the list?