PLD felt like the defensive tank, WAR like the inspiration tank (keeping your party alive with heals and mits), DRK felt like high risk high reward DPS tanking, while GNB was the "Jack of all trades".

WHM is the power healer, SCH is the defensive healer, AST is the support healer and SGE is supposed to be the offensive healer.

BLM is supposed to be reading into the dark arts for Destruction so it's all DPS, RDM is the jack of all trades job (probably the best implemented even if they find it hard to balance), SMN is the inbetween BLM and RDM.

The phys ranged are support DPS, so Defense (MCH), Offense (DNC) and Full Support (BRD).

Melees are kind of in a similar spot too: Full Offense (Striker (SAM), Support (MNK) ), whereas (Maiming DRG(SupportCrit) vs RPR (SupportDMG)) and Support (NIN) vs what I think is gonna be a more full DPS oriented class Viper..