1.The best place I think to kick the legs in a real fight is the knee. It is the one thing that will keep a person up and when you take that out, they will most deffinetly be down on the ground. 2.I think that both would be equally good. Boxing alone will let you learn certain targt areas on the body on where to strike and straight kickboxing will let you practice what you have learned by yourself. 3. I think its more to it than that, but your pretty much right with the knee and elbow strikes. Thai is more of a cultural way of life in that respect. 4. Like I said in the above one, all will be equally good to practice with. Try a little of each one see what works for you and apply it to shadowboxing (sparring yourself in the mirror), and actual sparring with an apponent.
