Name a champion you hate to play against as a jungler?

My top1 is definitely Nunu. Hes not ban worthy in any way but daaym do i hate him. His almost as unkillable as amumu , you never win an objective against him cz of 2 smites. The only way to win here is to pray an enemy nunu go full ap. Ap nunu as useless as ap malph maybe even more. Your calls?