Well Akali is about the only character I enjoy playing and both of my experiences were on her.
My funniest was around level 7ish 2 people were running behind a tower for cover after a fight so I dashed one, killed him, tower dove the second with a dash and killed him. As I was running away I aggro'd another tower and no one received the kill for it.
My most impressive kill was while playing with a friend I made today. We were playing 3v3, her as poppy, and a random as shen. We ran asap to the bush in the middle southern portion of the map. We see their team heading in. Right off the bat I toss a Mark of the Assassin at the tank and quickly dash out to hit him again. Shen dashes in and stuns and poppy smacks him. I AA him and he goes down like a brick. We branch out and start damaging the other two. I 1v1 teemo and MOTA him then toss an Ignite as he runs away. He dies and I focus on Tristiana. She's running away but has to pass by me so I toss another MOTA and hit her. I triple kill ace the team less than 1:30 into the game. Entire team just laughs at the situation. Needless to say, curbstomping didn't end there. They surrendered 3/0 vote as soon as they could. We ended the game with a score of around 23-2.