Obi-Can The only thing that pushes you that far is fear, and Anakin is not afraid. Sorry that's completely wrong. Anakin is deathly afraid- of everything. That was Yoda's main problem with bringing him on as a Padawan to being with "Much fear I sense in him." "Fear leads to anger, anger leads to suffering..." Anakin is afraid of being alone, afraid of not reaching his full potential, afraid of losing Padme, afraid of displeasing his Master, and yes- afraid of losing control and his inability to control his rage. Fear rules Anakin's life. His actions are often dangerous and reckless to counter that fear in him. He also thrives off of the fear of others. This explains his interrogating Zam and his slaughter of the Tuskins. (This is a plot point- I really don't feel like getting into any kind of moral debate over this fact- it is just what happens w/ Anakin and I accept that.) You notice in the Love Pledge scene - Anakin has pretty much given up almost all hope of anything and rather unconvincingly tells Padme "Don't be afraid." She responds "I'm not afraid to die." This is true- because Padme, like her children, is fearless. Anakin is completely surprised by this confession from her. And it is her strength that she breaths into him in the Love Pledge that brings him back to life and goodness. It is again when he is afraid Padme is dead after falling out of the ship that he loses focus. Had she been there, waiting in the wings, he might have been better focused and able to take out Dooku- but his FEAR prevented him from fully focusing on his mission. For Ep 3 I guarantee there will be a large amount of fear in the Jedi discovering his marriage. And his fear at not being able to protect his wife and unborn child that will send him over the deep end. Luke by contrast does not fear anything, until ROTJ. Vader is fascinated by Luke, because Luke seeks him out, willingly, over and over while on Cloud City. The only way he is deterred finally and able to fully stop the boy is to take his hand off. It is once he stops fearing the Emperor, and realizes the worst fear in the world would be to allow his son, his flesh and blood to die before his eyes- that allows him to let go of hate/anger/fear and redeem himself.