MCH at the time of Wild Fire hitting is basically the best burst in the game. DRG, BRD, and BLM are super high up there, BLM especially if there are lucky crits since they have the opportunity to add many thousands per crit in their opener. SMN doesn't burst super amazing even if they get a couple good hits in. NIN and MNK do burst a bit but not to the extent of the above 4.
I will say I'm a bit curious on why you care so much about burst, OP. AoE capabilities are more important for dungeons, and a whole mess of other things are more important for Alexander/Savage. Is it just something you have fun with or were you interested in burst for a gameplay reason?
