For me I am not a fan of BLM. I don't like how BLM are limited to using Fire as it's main form of offensive attack and only using Ice to replenish MP and the occasional Thunder as a DoT. I also don't see why the 3 thunder spells are just simply dots with varying cast times/potency they're not even stackable like Aero 1-3, Bio1-2,Miasam 1-2. I do find it quite annoying how NIN have access to all 6 elements, yet WHM and BLM are limited to 3.

Bard should have had more songs and it's playstyle has changed drastically compared to all the other jobs in 3.0

I think DRG should have had more jumps, atleast a AOE DoT similar to the one's Foulquest and Estininnien used on us in the class/job battle