Wu Kong and others---disappearing and untargetable movemenents
I mean, they basically get a free flash in their Kit. NO its even better, because they can relocate and disorientate their opponent in a frantic team fight. I find disspearing champions to be the most annoying (or untargetable movements like fizz) and honestly, unfair. Because, what have these champs given up compared others? They do plenty of damage, they have CC...but they are blessed with mobility and untargetablity which is very strong because it can be offensive and defensive.
Basically every champ has kit that has some CC and does damage...but some get super movements like vanishing, and its annoying to try to pick them back up and click a fucking minion afterwards even though you swear you clicked on the champion.
You wont see any of the least played champions with movements that make them vanish or make them untargetable....you won't see fizz, zed, lb, shaco, vayne, wu...you won't see anyone like them among the least played champions. Coincidence?