Most annoying champions to lane against, purely based on the sounds they make.

NYEH
EH
NYEH
EHH
EH
EH
MYE
HA
HIYAA RAHHHH
HYAAAa
AHHH
AHYYAAAA
HIYAAAA
TOME
TOME
TOME
DOME
DOME
HYAKYUUUUUUUUUUUU
TOME
TOME
DOME
TOME

NYEH
EH
NYEH
EHH
EH
EH
MYE
HA
HIYAA RAHHHH
HYAAAa
AHHH
AHYYAAAA
HIYAAAA
TOME
TOME
TOME
DOME
DOME
HYAKYUUUUUUUUUUUU
TOME
TOME
DOME
TOME
why do all
players gotta spam that fucking laugh? It just makes me want to shut your ass down more
THE TIME OF MEN HAS COME TO AN END
Is why I spam. It comes with the funny chicken wings emote.
laugh spamming tops my list.
the sound of cancer
super man 
The only champion I always mute every single game, friend or foe.
THE FIRE IN YORDLE'S HEART NEVER BURNS OUT
Zed's laugh.
Riven.
( Specifically super galaxy ) FIERY SPIRIT OF THE YORDLE INFERNO!!!!!

i find garen and heimer to be DEMACIA BREAK THE RANKS AH THE SWEET SPELL OF SILENCE
Smell* Science*
Aww you suck OP, Rivens voice is amazing, she is voiced by the lovely Cristina Vee, sure if we're playing LoZ and it's Link it can get annoying after a while, but Cristina Vee has a lovely voice. Here https://www.youtube.com/watch?v=smIJ0oUGpUs
Do that stupid dance again and I'll end your life you little fuckboy.

Are the top of my list... and sometimes I get both in a game...
Fucking sivir it's like laining against Serena Williams...
You fucked Sivir?
"Your turret has been destroyed!"
Pretty sure this sound is part of his VO