I too liked the end battle, but i too was also looking forward to that battle ever since the OT.
And the whole thing with the High Ground, Obi-Wan wasnt really any 'higher' than Anakin. He was however in a better position, more stable ground and all that (aka 'The High Ground', or the Upperhand) He knew if Anakin made a move he would be in position to well do what he did. If youve seen Highlander: Final Dimension, its like the scene where Duncan and Conner are fighting (actually twice, one during a flashback with training, the other during their actual fight) where Duncan gets Conner in a Position where he appears to have the upper hand, but Conner is really in control (reverse in the second fight). But during the first fight Conner new that Duncan was helpless and he could take his head at that point.
so yeah, most battles are determined by who has the advantage over the other. It all came down to Obi-Wans experience over Anakins Lack thereof and being driven by emotions.
thats a bit of a groundless nitpick if you ask me.
however, the death star complaint i have to agree with. apparently they ran into some design/construction flaws. maybe the trade federation had an embargo against them

-Darth Simon