It depends what you want really? Either xp or a little xp + cash, like Hahanerd45 said, chaos druids are really good cash and they mage you which means if you put your best mage defence on i.e. d'hide chaps, leather top, sara book/mind shield, then they shouldn't hit you too often.
But best xp for you is probably at rock crabs with a few thousand bronze knives.