Angel said:

The brother vs brother never worked for me.We never get any glimpse that these two are brothers or even friends..but..

...Better show two best friends that now are in different sides with any means nessesary.

-Angel

I think you guys are missing the point of what a FAN EDIT can be. Why not make it so they have a better relationship by adding/cutting/restructuring scenes? That's entirely possible, I've seen it in other edits. Giving him a red lightsaber at that point in the saga just says "Another sith." instead of "A fallen Jedi."