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On the 1-6 scale , where would Middle Easterners fall?

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even middle easterners have various skin types, some lighter, some darker. I would say that most fall into skin type IV or darker, so a Yag laser would be best to avoid burning the skin. If you're on the light side, you can try to have a spot size test with an alex or a diode laser to see how high the settings can be set without burning your skin. if your skin can handle it, you can use one of these lasers instead.

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I don't know what you are looking for in terms of..like the pros and cons.
I do know laser hair removal can leave white spots from the zaps on their skin. My friend who is from India had it done and she has many many little spots all over her face....

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that's called pigmentation and caused by using lasers that are meant for light skin, on dark skin. (like alexandrite and diode at normal/high settings). that's why Yag lasers should be used with dark skin.