Re: Star Wars VII: The Force Awakens Trailer (Spoilers)
Given all the other influences in the original movie, I'd say the Jedi are Samurai and the light swords are more like katana's. "A more elegant weapon."
I'm not saying that isn't how they ended up, but the original conception of the "laser sword" was more of a broad sword, being very "heavy" and easier to wield with two hands rather than one. Again, this is what it started out as-obviously, what it ended up as deviates quite a bit.
I think the milieu of influences in Star Wars, there is a lot that can be seen emerging in the finished product.