Magician %/s (KMS FLY 2 & GMS Dawnveil)

Fire-Poison Archmage:

Defense:	0%	10%	25%	40%	70%
Single Target	5170%/s	4947%/s	4610%/s	4272%/s	3597%/s
Three Target	15377%/s	14708%/s	13715%/s	12717%/s	10730%/s
Six Target	30302%/s	28981%/s	26982%/s	24987%/s	21025%/s

Ice-Lightning Archmage:

Defense:	0%	10%	25%	40%	70%
Single Target	3994%/s	3740%/s	3359%/s	2979%/s	2218%/s
Three Target	11979%/s	11219%/s	10081%/s	8939%/s	6655%/s
Six Target	21027%/s	19715%/s	17742%/s	15774%/s	11837%/s

Bishop:

Defense:	0%	10%	25%	40%	70%
Single Target	2667%/s	2471%/s	2175%/s	1878%/s	1294%/s
Three Target	8004%/s	7415%/s	6532%/s	5647%/s	3882%/s
Six Target	12909%/s	11928%/s	10455%/s	8985%/s	6041%/s

Same constraints as original OP, except this more accurately reflects how casting buffs affects DPS. Also found some evidence (thanks to Locked) to prove that Mist Eruption is actually 1.35^(x-2) multiplier (at the least 1.35^x as opposed to 1 + 0.35x). If you have higher than 20000 in your range and manage all these DoTs listed (lower when you consider criticals and other character's DoTs), you will achieve lower DPS. Haven't really tried to explore this more to see what the threshold is for an I/L to be better DPS than an F/P due to the damage range limitations, but there should be a point where I/L > F/P.

It also appears that my original table did not actually account for Booster for Bishops. This has been corrected.

I've also included each class's respective summons, working under the assumption they are unaffected by any buffs, deal their full damage, and attack at a rate of 3030ms. If there is any issue about this, please feel free to correct me.

To note, I/Ls and Bishops cannot hit six monsters with their regular skills. Big Bang is not a suitable replacement to hit six monsters.