I do love cygnets, they make the cutest noises, and they are very soft.

The adults are also great, even when they're being defensive their best effort is fluffing up their neck feathers and becoming a hissy feather boa. It really is mostly just a display since their beak really can't really break skin (they're filter feeders), and while they can land a decent punch with their wings I've never gained an actual bruise from one.