You mean the story about a nine year old boys induction into a weird religious order that dictates that he cannot love any one or ever see his mother again
In fact I kind of like that vision of an old sectarian religion that push Anakin into the dark side even more that Palpatine himself.
so he returns home to find her kiddnapped and raped to death by Sandpeople, so he kills them, all of them, even the children, and the queen who is no longer a queen falls in love with him even more for it
One of the worst idea of the PT indeed. I agree completly. In my silent edit Anakin just comes to Tatooine and find his mother's tomb.
not long later the clone wars break out, the opening battle of which takes place in... a giant gladiator style arena...
Not a so bad idea IMO. Mostly poorly executed, but not a bad idea.
after a couple of second of feeling the power of the darkside, he decides it would be fun to kill some kids and does so
The Idea of having Anakin killing Jedi kids is good to me (well, I don't mean it's good to killing kids of course...! I just say that it's not common to kill kids in big mainstream blockbusters) but it is not well inserted into the story, it feels too rushed. That is a good exemple of what I mean when I'm saying: good story/bad script.