Fire/Fire II/Fire III?

[Sadana]

What others have said ^. Especially about the AoE = cranky mobs comin' for ya in the dungeons (which usually leads to cranky tanks ).
But I'm going to add in that I usually go Thunder II > Aero > Blizzard > Fire III > Fire (til out of mana) > Transpose etc. I like putting Blizzard in there for the Heavy effect. (I'm usually synced down in dungeons thus far and haven't had opportunity to make use of Blizzard III yet.)

[PetiteMalFleur]

Here is my rotation for my level 36 BLM. Thunder 2 > Swiftcast > fire 3 > fire 1 (until out of mana) > transpose > thunder 1 > blizzard 1 > fire 3.

Once I get blizzard 3 I will eliminate transpose from my rotation and make sure I conserve enough mana after casting fire to cast blizzard 3. I use swiftcast before fire 3 everytime it cycles to maximize my dps. If thundercloud procs I often pull hate off the tank of he is undergeared or not consistently doing his rotation.

Aero or bio do little damage compared to my class skills so I don't put them on my hotbar.