Who are the CC-heaviest champions in the game currently?

I'd love to be as annoying in the game as possible, not necessarily by damage but through crowd control abilities and items.

And so, what are the CC-heaviest champs in the game right now? Preferably champs that are good with builds that compound additional CC (Items with further CC passives/actives). Also, best if these CC's are consistently easy to hit lol.

Thx for any help!