THM and BLM difference

[Tano]

can still be useful in party with cure, stoneskin and raise.
has still chameloen to pull off hate.

convert is not an issue if you have potions.

so far only negative traits are no flare, no sleepga (shouldn't be an issue, since there should be other black mages in party and has still sleep and more piety and macc with vanya+materia set) and no burst, replaced by cure, stoneskin (to buff dps group while whm heals tank, or to help healing the tank), raise, rampart, sentinel, aero, stone.

astrolabe and vanya set so far are the most powerful gear for mage (excluding relic for blm).

[Elirion]

[QUOTE=Tano;736329]can still be useful in party with cure, stoneskin and raise.
has still chameloen to pull off hate.

convert is not an issue if you have potions.

1QUOTE]

Blm has chameleon also plus Freeze which means they can keep their overall hate lower than thaum over time when fighting a single target. So, assuming an equal tank, a Blm can theoretically do more damage than a thaum before pulling hate. This is without factoring in gear differences.

Thaum is definitely more survivable than Blm and more versatile but if you are just comparing damage output Blm wins IMO.