Lurtz

History
Lurtz was the first of Saruman's Uruks to be bred, choking the first orc he sees to death within seconds of his birth. Attempting to intervene, other orcs move towards the newly born Uruk-Hai warrior, but Saruman halts their advance, intrigued by the malice and violence present in the Uruk's blood, leaving the unfortunate orc to its fate. He became Saruman's second-in-command, and led them into battle against the Fellowship of the Ring at Amon Hen. Lurtz was born from the first batch of Uruk-hai in Isengard's pits, and so was much smarter and stronger than the later breeds which were bred more quickly, presumably so Saruman could amass an army more quickly; they likely developed to their fullest potential. Given that he gave orders to the other Uruks at the Amon Hen and given that he was given private audience with Saruman, he could presumably be called the strongest, smartest and most loyal of all of Saruman's Uruk-hai warriors. In the original books, Boromir is slain by orc archers, described as having been "pierced by many arrows". In the movie he is killed by Lurtz, who shoots him three times in the chest. Aragorn intervenes, tackling Lurtz to the ground before he could fire the finishing shot at the Gondorian captain, and after a brief but intense fight, cuts off Lurtz's right arm, stabs him in the stomach, and finally decapitates the Uruk leader.

Battle vs Sten
In Amon Hen Sten along with 3 Qunari have found the bodies of Alistiar and his Denerim soldiers and begin to search the area for the killers. Meanwhile Lurtz and 3 Uruk-hai are in the forest in hiding from the defeat of Sauron and are exploring the area until they spot Sten and his quanari. Lurtz sends his Uruk-hai in and takes out his Composite Bow and fires killing a Qunari by striking him in the neck[1]. Sten and his men are alerted and see the Uruk-hai and Lurtz and so a qunari takes out a Spear-Thrower Longbow and fires striking a Uruk-hai[2]Sten then takes out his greatsword Asala and charges and attacks a Uruk-hai who blocks it with his shield and tries to slash him but Sten's armor protects him and so while recovering Sten grabs the Uruk-hai and stabs him[3]. Lurtz meanwhile is staying back and fires another arrow striking another quanari who is about to finish off his last Uruk-hai[4] and pulls out another arrow but a quanari charges in and tries to stike Lurtz but Lurtz jumps back but his Composite Bow is broken and so he takes out his Uruk-hai sword and charges at the Quanari. The two engage until Lurtz strikes the sword and stabs the qunari in the leg and the qunari falls down in pain and Lurtz strikes down on his head[5]and looks up to see Sten stab his last Uruk-hai[6]. Lurtz and Sten move towards each other and prepare to dual to the death with Sten making the first move trying to stab Lurtz only for Lurtz to parry it and strike down on Sten's back only for the armor to protect him. Lurta tries to decapitate Sten but Sten quickly dodges the strike and slashes off Lurtz's leg and Lurtz falls down but doesn't quit and tries to get rid of Sten's leg but again the armor protects Sten. Lurtz looks up and sees Sten and so Sten quickly decapitates Lurtz[7]and his lifeless body falls down with his head rolling down the hill. Sten yells in victory "For the Qunari!"

 Winner: Sten