What do you guys think is the best skin in the game?

Demonblade Tryndamere :) It just improves on his default skin so much and actually emanates endless rage and barbaric fever.

Prettiest particles - Arcade Hecarim Silliest Skin - Amumu Regifted/definitely not Blitzcrank Best animations/sound effects - Pulsefire ezreal Scariest splashart - LollyPoppy

My personal favorite? Silent Night Sona (hopefully it comes back this year so I can pick it up!)