This questions has two definitions. 1) douchiest as in worst personality. and 2) gameplay. as in: that character only a genuine troll would main (and don't say teemo)
First definition: 
Second definition: 
and
Hauling Ashe3 votes 
VoidStaresBack2 votesWhat'd poor Cho ever do to you?
:P
MythPuppy4 votesThe dude has a basic attack that goes through minions, a silence, and a ground smash that can be used from miles away. It's hard to do literally anything with him near you.
VoidStaresBack2 votesOmm nom nom.
zacktootall2 votesanyone who claims rank matters....... oh sorry your talking about champs then
MythPuppy1 votesI mean honestly, you're right both ways...
oSEXYPLATYPUSo2 votes 
my choices
opps forgot 
RainXBlade2 votesFirst Definition: and
Second Definition: 
(I just hate that he's meta rn) 
and (including myself bc I main him)
MythPuppy1 votesWhy ya gotta be hatin' on ziggs bro? The rest I understand. But why ziggs?
RainXBlade1 votesHis new W and now that he's meta, prepare to tower hug when you see him at bot lane.
Blue Moon Wolf2 votesLore wise- 
Gameplay wise- 
KraDEsluP2821 votesR I V E N
ProtestantCaesar1 votesDefinition 1:
Definition 2: 
Spicy Rice1 votesPersonality wise, probably 
Gameplay wise,
Cowseed1 votesCharacter wise -
Gameplay wise -
midnight oil241 voteslore-wise 
gameplay-wise
Fondling Gems1 votesJayce. I give 0 fucks about his laning power, but that voice man. Can't stand the fellow.
Shaco?
RamboDash151 votesLore: Dunkmaster , everything he says reminds be of a D-bag
Game: 
Every time they get a kill, you just know that mastery spam is coming