Darklight used to be high end for White Mages as well but unfortunately its now Black Mage only and there are no other decent sets outside of materia-melded gear which is broken since it has cracked materia which can't be removed yet. Without the appropriate materia for the melded gear its pretty much worse than AF regardless of item level.
So for now White Mages are stuck with AF. Not only that but the White Mage AF during 1.0 was actually the best set outside of Darklight due to its bonuses. Those bonuses are now removed, however, and merged with actual stats.
"I saw GAMEFAQs with faqs being spelled like faqs instead of facts I figured poor grammar to be welcomed" -MiKe345675