Damage Over Time Ratio's
This is where you try to maximise your effieciency by dealing the most substainable damage wihtin a set amount of time. Once again, this greatly changes from situation to situation and monster to monster
There's so much to consider here it would take a really long time to go through everything individually but there are a few thing's can be used as a rule of thumb.
In situation's where Physical Spells (PS), Weaponskills (WS) and Melee Damage (MD) all work effectively:
A Blue Mage deal's the most damage over time by using PS, WS and MD with each over.
Blue Mage has enough native MP recovery options to sustain repeated casts of the Little 3 PS spells over a long period of time.
Blue Mage has enough native MP recovery option to be able to skillchain every 1:40 mins as well as "spamming" the Little 3.
With an Almace, BLU has enough tool's to maintain Aftermath LV1 constantly whilst doing the previous 2 points.
When put altogether BLU has extremely high DoT results. The majority of this comes from PS and not actually WS/MD.