One thing that always bugged me was it seemed they put the vader suit on over the burnt Hayden without even removing the burnt clothing off of the skin. I know it is just a fantasy movie, but even for Star Wars burnt Hayden looked a little beyond repair. I wasn't expecting him to get so fucked up. I think I actually liked an EU idea better that Vader gets the suit from radiation exposure. I was expecting Hayden to get a few limbs cut off and then fall into a nuclear reactor before I knew the plot of ROTS. It's also pretty contrived how Anakin and Obi-Wan fight over lava sometimes only inches from it, let alone the splattering of it, for what seems to be 45 minuets. Suddently Obi Wan jumps up on a little hill and says "It's over Anakin, I have the high ground!" What? Why does that matter?!! After all the jumping and flipping you did over lava falls, precise lightsaber fighting, Anakin suddenly decides to just clumsily jump up in the air over Obi Wan and then gets all cut up. I would've preferred to see a fight to the finish where Anakin slowly gets more and more wounded, until he no longer can fight. In ROTS they fight precisely until the plot needs them to not fight precisely. Then Obi Wan just lets him burn alive after mercelessly trying to kill him. They could've architect the situation to give Obi Wan a legitmate reason not to finish him off.