Something else about the 4-5-1-2-3-6 order appeals to me that I just thought about. I find JasonN's prequel fanedits to be the best that I have seen to this point. But one thing that bugs me is that he cut out Leia's birth in EP 3. Now, it doesn't bother me that he did this if I watch EP 3 in isolation. But If I were to watch in order 1-2-3-4-5-6, it presents a problem when we get to 6.
My original rationalization was this: The filmakers (hah!) deliberately concealed Leia's birth from the audience so it would be a surprise when we get to Leia and Luke in EP 6. Of course the problem is, why would they conceal Leia's identity in the prequels, but not Vader's?
But if I watch it 4-5-1-2-3-6, this problem would go away. We don't know Vader's identity until the end of 5. Then we watch 1-3, without knowing about Leia, and when we get to 6, we are surprised to learn who Leia is. Interesting.
I've been thinking quite a bit about how to present Star Wars to my daughter, although she is still several years away from watching it. I always assumed we would go 4-5-6-1-2-3, but now I've got to consider this 4-5-1-2-3-6 proposal instead...