Best dungeons to bot for gold?

I heard the contract because of all the good es and i heard two moons because of the magic powder.
But i have run several runs of the contract and have gotten nothing, and in two moons i only get about 1-2 powders per run (which isnt bad).

i thought that the howling soul would be the best choice, with the soul essence running around 90k a pop. And from past experiences i got 1 soul essence about every run. So wouldn't this one be the best?

Which do you think is the best ?

with the contract you'll be lucky to get 2 sentinels and 2 malestrom within 8hrs of botting/farming. i personally like botting/farming irukul, i just sold 3 warlord es's for 8m each today, on top of the 6m gained while botting around 8hrs, and the mats sell for a decent price, also im using @DanK new bot and it has an extra loot option which on certain maps (irukul included) picks up extra loot such as magic powder, blessed magic powder, life ergs, ect. i ended up with over 50 mp's, 8 blessed mps, and 55 life ergs, which i used to make magic elixirs and profitted pretty decent. so in short 6hrs on irukul with @DanK bot earned me around 34m in total. not bad