These two champions have very similar roles, except that Warwick does everything way better.
Warwick has by far the better sustain, faster jungle clear, especially with Tiamat, his blood scent is global compared to Noct's ult which has a very short range, blood scent has no cooldown on the movement speed boost making him way better at ganks compared to Noct's ult which has a super long cooldown. Suppression is way better for team fights. Both champions have a delayed fear, although Warwick's can hit all enemies.
I don't see any reason to take Noct when Warwick can do everything he can do only better.