Well let's see: Duel of the Fates: Darth Maul was definitely going for the kill. Not sure about the Jedi, they could have planned to arrest him, but then realized he was too dangerous to be left alive. Duel on Geonosis: I don't think Dooku intended to kill any of the Jedi he fought. I personally think Anakin wanted to kill Dooku, seeing as Anakin is full of anger and hatred. Duel above Coruscant: Dooku was ordered to kill Obi-Wan (he didn't manage to) and he was to capture Anakin alive or loose to him and Palpatine would intervene. Obi-Wan vs Grievous: Both of them had the full intent to kill one another. Showdown on Courscant: Palpatine planned to kill all the Jedi (or at least I think so after they brandished their lightsabers) and Mace initially was going to arrest Palpatine, but thanks to poor writing, he intends to kill him. Yoda vs. Palpatine: It was clear that this was a duel to the death (at first anyway) Obi-Wan vs. Vader: I'm not sure how Obi-Wan felt, but Vader was going for the kill. Ben Kenobi vs. Vader: Ben was just using this as a distraction, and Vader was once again going for the kill. Luke vs Vader I: Luke attempted to destroy Vader, but failed utterly. Vader wanted Luke alive. Luke vs. Vader II: Neither wanted to destroy one another. So, all but the final duel (in my eyes) had at least one combatant wanting to kill their opponent.