Bingowings said:
Why have Owen Anakin's stepbrother?

If you really want to start from scratch have him Ben's brother.

Ben is already a proven fibber and it made sense in the ROTJ novelisation for Obi-Wan to place Luke with his brother than Anakin's.

All the resentment about damn fool idealistic crusades could be Obi-Wan talking about his relationship with his own sibling and Anakin could have been this Han style great pilot that Owen and Beru used to drink with down the Cantina when he was a hot headed slacker kid (the type of boy he keeps telling Luke off for being). Anakin could have been type of cool brother Owen always wished he had instead of some weirdo hippy mystic ninja.

Owen could be just as mad at Ben for taking away and corrupting his idealised brother as well as not being it himself.

That adds depth to four characters in one swoop.

meh...you can add depth to the characters in other ways. I don't like the idea because it is established that Owen is Luke's uncle and nowhere is it established that he is related to Ben. That just muddles up and confuses things even more IMO.

I also thoroughly dislike the idea of Anakin being a Han like character. Han represents the type of person who thrives in the days of the Empire, when the more civilized and refined days of the republic are over. The characters of the PT shouldn't be as "modern" as the OT characters in that way. It also doesn't fit with Vader's very formal and regal sensibilities and pattern of speech.