Mage, enchanter, cleric or a mage, shaman, necro? Which would you guys prefer and why? Killing speed isn't important to me, looking for a laid back trio that can kill hard content, even if it's slow.
If by "hard content" you mean "exping in level-appropriate dungeons," the second trio will work just fine and is much more laid back. If "hard content" means pushing the limits of what can be killed with only three toons, the first trio - while not at all laid back - is as good as it gets. (At least where mobs are charmable, at any rate.)