I would say ED.
It's easier to do good solo huntings with high exp when you are mage. And nowadays any vocation at high levels can do realy good profits. Moreover EDs are always needed in team hunts, and they also got the option of doing dupla huntings:Ek-Ed, Rp-Ed and Ms-Ed.
Solo huntings Ek for me are still realy profitable, but they do not get that good experience after all.