Generally speaking it's not worth it because one MS quint hardly gives you any advantage, while AD quints help with csing and autos while AP quints give you burst on your spells.
Having three tho, on specific utility junglers, is a different story. Utility junglers often don't get any huge advantage from AP / AD quints, so running MS quints is a great option.
Having three tho, on specific utility junglers, is a different story. Utility junglers often don't get any huge advantage from AP / AD quints, so running MS quints is a great option.