I don't really see the superiority of customary wedding to that of white wedding. I even have a feeling that customary wedding is only recognized in some cultures, particularly in those countries that are too traditionalistic. Thus customary wedding can be said to be more appreciated in such climes due to the importance placed on it.
But going with what is generally accepted globally, white wedding is far more popular and on superior pedestal than the customary wedding. In aaddition, to its global recognition, white wedding often goes with God's blessings since it is done in His temple.
Moreover, white wedding is the type that's usually bears the symbolism of wearing ring on the finger, which is an indication that one is married. But for the customary wedding nothing to show for marrital commitment to another person.