Since Obi-Wan had the high ground, if Anakin tried to do the leap that Obi-Wan thought he would try, he wouldn't go high enough, and Obi-Wan would cut him down.
if it was so easy, anakin would have been in pieces on the platform.
i think obiwan didnt see it coming, thus the element of surprise.
the second time he did the exact same move (duh) he got his ass
handed to him...along with an arm and 2 legs
I think also GL wanted it to "echo" what happens in the duel with Luke and Vader in ROTJ when Luke does a back flip up onto the walkway above Vader, the only difference being that Vader learnt his lesson with OB1 and instead of risking limb-loss by jumping up after Luke he throws his saber instead. Well done I say
Vader: (thinks) "This seems familiar..........Oh Well. Here goes!"
PHIZSLICE!
Vader: "Ah f*ck! My nose!"
Luke: "My God, my father is Michael Jackson."
Emperor: "Good! Now fullfill your destiny, and take Darth Neverland's place at MY side!"
__________________ Recently Produced and Distributed Young but High-Ranking Political Figure of Royal Ancestry within the Modern American Town Affectionately Referred To as Bel-Air.
No Sidious won cause he did have the higher ground. He didn't have to put as much force into throwing the pods down and it took more for Yoda to throw them back upwards
Actually it's been settled that it was an even mix of gravity and high ground.
__________________ Recently Produced and Distributed Young but High-Ranking Political Figure of Royal Ancestry within the Modern American Town Affectionately Referred To as Bel-Air.
for those wondering what would happen if anakin cleared obi-wan, play the episode III game
__________________ Land of the free, home of the brave...
Do you think we will ever be saved?
In this land of dreams find myself sober...
Wonder when will it'll all be over...
Living in a void when the void grows colder...
Wonder when it'll all be over?
Will you be laughing when it's over?
that has nothing to do with having the high ground when dueling, in which case gravity has nothing to do with it, but rather an advantageous position for defense and striking.