I'm a hansel-build. In 185 hits I earned 3bil in nml; in 186 hits I earned 2.5bil in haunting. Haunting requires pots to hit with attack, nml doesn't, and I earn about 20mil per hit either way (actually earn 7mil less because of pots in haunting). Is nml the correct eb for me?
If I am not mistaken, get more hits in on Haunts(take advantage of item stages) and you should see a much better return.
What souless said, get bow, shoulder plates, gauntlet and feather, even boots. You'll hit hauntings easy enough.
Best way to chose is probably to run tests and take notes. Do the exact same number of actions on each EB. Let's say one FB troops and one FB spies, make sure there is no fails and don't do any item phases. Compare final plunders from EB history et voilĂ .