Kyle drinks, he has a girlfriend that he goes on vacation with to beach planets. The man's basically a legend.
Born to a farmer he went off to the Imperial Academy and became a storm trooper, eventually the Dark Jedi Jerec discovered Kyle's father was a Jedi that knew the location of the Valley of the Jedi, a religious site where a hundred Jedi and various Sith had been trapped in an orb of power which could be siphoned. Jerec killed his father and had his head put on a pike, Kyle then went on an adventure of revenge during which he too became a Jedi. Working with Luke Skywalker the man eventually came to his senses and realized he need not seek revenge and instead seek the Valley to keep it safe from Jerec. A whole adventure of self discover with him defeating Jerec and freeing the souls trapped in the Valley of the Jedi. After that what does Kyle do? Gives his lightsaber to Luke Skywalker and goes "Well I'm not a Jedi, never will be. It's not for me." He then goes on to become a mercenary for years working with Jan Ors, a kick *** mercenary friend of his. She and he go on helping out the New Republic until a new Dark Jedi threat arrises and Jan is kidnapped then executed. Kyle gets pissed and decides to become a Jedi again to kill the Dark Jedi to which Luke Skywalker agrees as long as he calms down and remembers to follow the ways of the Jedi. Then again Kyle isn't much of a saint, through the adventure you beat up people for information, kill gangsters in between you and an informant, etc. Kyle is a sarcastic jerk to people often and usually insults any enemy he comes across with witty remarks. He's a mercenary still so Kyle doesn't just use a lightsaber he uses whatever weapon suits the situation. Frag grenades, high explosives, assault rifles, sniper rifles, the list goes on. Eventually he does defeat the Dark Jedi and marries Jan after discovering they only faked killing her to anger him. Kyle then goes on to become the Jedi Blademaster and trains many of the new Padawan of the New Republic. He fights in the Yuuzhan Vong war and becomes about as decorated as Luke Skywalker in regards to battles, all the while just often joking around and being sarcastic as ever even to other Jedi Masters.
I think he is my favorite Jedi Master because he isn't some peace loving monk, he's just a guy who drinks, likes to make fun of people, with an actual relationship, that likes to teach and help others when it suits him. He's a good guy but very rough around the edges. Sort of like if Han Solo was a Jedi.