My take is this... First the Jedi Prophecy says,
In a time of great despair, a child will be born, who will destroy the Sith, and bring balance to the force.
First, a time of great despair means a time of lost hope, loss of heart, unhappiness, giving up.... It also says who the child will destroy the Sith, meaning all Sith are defeated, gone forever..... And it says bring balance to the force. ( it doesn't say bring balance BACK to the force, because the force never has been in balance to begin with. Period. ) Also what is a Jedi ? A force sensitive being who wants to do GOOD.
A Sith is a force sensitive being who wants to do EVIL. Helping others means good. Hurting others mean evil. Plain and simple meaning. So, to me, the Prophecy clearly translates, “ In a time of no hope and all is lost, a child will be born, who will destroy the evil , and bring peace and love to the galaxy.
Next, Anakin was not born in a time of great despair. The Empire hadn't ruled yet. And neither was Luke, because their was still hope in the galaxy to fight the Empire ( Ep 4 title “ A New Hope “ ).
Also George Lucas himself put in a scene in ep 3 about a Sith named Darth Plagueis who could use the dark side of the force creating a child. Which clearly means, dark creation = dark child. So why would Lucas himself add that in if it didn't mean anything ? Also, we never have seen the Sith planet in the saga ( movies ) yet. Plus, its clear that Luke is the prophecy of the Son of Suns. Remember that?
So to make it simple, here is the confusing translation Lucas is trying to say. And after all, why would Lucas tell you everything while making the prequels? If hew did, everyone would bother him about ep 7-9 while he wanted fans to see the prequels. Then again, he could have improvised changing things around like he did when Anakin and Vader were at first 2 different people. Sama as when at first , Leia was not Luke's sister until he changed it in ep 6. So here's the translation Lucas wanted to show...
The first trilogy ( ep 1- 3 ) is about the rise and fall of the false prophet ( false hope ) The one who would help the evil return to power.
The second trilogy ( ep 4-6 ) is about the child of redemption ( Luke ) that would once again bring hope out of the darkness to help the good once again believe.
The third trilogy ( ep 7-9) is about the rise of the chosen one who would destroy the evil, end the war, and bring love and peace for all in the Universe.
To me, and keeping the Skywalker family important to the saga, it started with Sith lord creating a dark child. Then the will of the force cracked the dark side when the twins were born filtering out the evil bloodline. And with Luke not having children, and Leia having the force within her, has children. How many , who knows. But Leia's last child, not by Han or any other man, but from the FORCE, would mean that not only is the child “ the last Skywalker ( bloodline), but the Chosen one of the Jedi Prophecy.