Ferno mp0for a bit. But it got too costly to farm it efficiently with little deaths
what i found was that, their main movement, vault, uses up most of their damaging attacks, where as monk, their dex counterpart, has thunderclap which requires no spirit, thus allowing for them to continuously move fast, while attacking.
I also found that with no one-with-everything-like ability, they are extremely squishy, which is why they get extremely costly because you dont look for cold or fire res, you HAVE to get all res.
IF
you somehow spent XXXmillion on a dh, i think it would easily outfarm other classes, because it should be able to one hit everything from a distance with huge AOE multishot and be able to use a lot more disc to vault and go quickly.
BUT
imo, everything else except wizard is a better choice because of the input/output ratios