Which champion quote from LoL is your favorite delivered line?
It doesn't have to do anything with the actual quote, just the delivery of its voice actor. Here are some of mine, to provide an example:
Mecha Zero
: (When buying Mercury's Treads) "I REQUIRE NO FURTHER UPGRADES. But I just love these boots."
Here's a bit of context. I'm an aspiring voice actor, and while I may not be as good as I dream to be, I know a great deal about voicing, and League has some of the most memorable voice actors. Some of these lines are delivered beautifully, and I wanted everybody to share what beauty they found in the hard work of League's voice actors, and how it resonates within them.
: (When buying Mercury's Treads)
"
: "
:
: Boop. Boop. Boop.

SOOOOOOOOOOOOOMMMMMMMMMMMMMEEEEEEEEEEEEEETTTTTTTTTTTTTTTTTIIIIIIIIIIIIMMMMMMMMMMMEEEEEEEEEEEEEESSSSSSSSSSSSSSSSS THIIIIIIIIIIIIIIISSSSSSSSSSSSSSSS AAAAAAAAAAAAAAAAAAANNNNNNNNNNNNNNNNCCCCCCCCCCCCCHHHHHHHHHHHHHOOOOOOOOOOOOOORRRRRRRRRRRRRRRRR JUUUUUUUUUUUUSSSSSSSSSSSSSSSSSTTTTTTTTTTTTTTTTT WEEEEEEEEEEEIIIIIIIIIIIIIGGGGGGGGGGHHHHHHHHHHHHHSSSSSSSSSSSSSSSS MEEEEEEEEEEEEEEEE DOOOOOOOOOOOWWWWWWWWWWWWWWWWWNNNNNNNNNNNNNNNNNNNN.
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DUUUUUUUUUUUUUUHHHHHHHHHHHHHHHHHHH DUUUUUUUUUUUUUUUUUUUHHHHHHHHHHHHHHHHHH DEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
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DUUUUUUUUUUUUUUUUUUUHHHHHHHHHHHHHHHHHHH DUUUUUUUUUUUUUUUUUUUHHHHHHHHHHHHHHH DOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
"I envy silence...... because... I must be loud."
"I swear each performance is the last, but I lie every time."
ITS MEE!!!! I WAS HIDING~~ :3c
"Tomorow is a hope, never a promise"
: Goats are smart, eat everything, climb everything! and if something kicks you? kick it back!
:People waste a lot of time, then they wish for more, more hours in their days, more days in their years, more years in their lives, cause if they had all that extra time, they could fix any mistake.
I don't need hours days or years, I only need
:The worlds one river, and I'm its
says.
)
: "When you dance with death, lead."
: "I value truth, and barbecue."
"Sometimes you're the catch; sometimes you're the bait!"
"I know, what makes them tick. I know how, to make the ticking stop."
(A random micro VO)
(Upon dying)
You have a warrior's heart... I think I'll take it!
Any line he delivers is enough to make a chill go down my spine.
"I miss my kind." and "FEEL MY STING!" just capture the sadness and ferocity that Skarner has. I think his voice is awesome.
I honestly think that Vel'Koz's lines are some of the creepiest things in the game. Just the casual way he says "Are no organs safely removable?" or "When bisected, neither half grows back." It's just said perfectly and really ties the guy together for me.
"As I live, all will DIE!" (Especially since it's a variation of Nasus's champ select quote)
and Traditional 
: "Have you anything to offer but weakness?!" and "The worst part about losing a blade is to trace back all my stabbings!" [He just sounds so exasperated it's hilarious.]
"Should I make your pulse rise, or... STOP! he he"
"I'm rubber and you're... ON FIRE!"
"Want another shot? I wouldn't want to leave things up in the air."
"I'm crazy! Got a doctors note..." "Duck! Just kidding, that wont help."
(old karma) "Guess what's about to hit the fan"
"If you run... you wont see me STAB you!"
"For my next trick, I'll make their life bars disappear."
"Shhhhhhhhh... I'm charging my laser!"
"You cant take it with you, so give it to me."
(Final Boss) "Run run! Or you'll be well done!" (Kefka for the win)
"Why cant I get a straight answer? It's always just 'Oh no! Stop hitting me! Ow, my face!'"
"Death is like the wind. Always by my side." (pretty much any character voiced by Liam O'Brien has good quotes in my book)
"A true master is an eternal student."