Regarding the whitemages ability to cast raise in combat. While at the early levels this will be mainly pointless, at later levels in raids and dungeons, especially on long winded bosses this will become incredibly potent. Does anyone remember the early Kirin fights in FF11?

And when you think about the whitemages lack of specific skill for recovering MP, the natural regeneration is much more powerful for whitemage as the casting costs of a lot of the healing spells are lower than the nukes thaum get.