Ducks vs chickens

[amk3000]

I've been considering getting ducks, because the consensus seems to be that they are superior to chickens when it comes to ridding the garden of slugs. (See this thread for more details.)
I would like to ask any duck owners to comment on the virtues and/or drawbacks of duck ownership over chicken ownership. For example, ease of raising, friendliness (do they bond with their owners?), suitability as pets for small children, etc. etc.
Thanks.

 

[FlashPointFarm]

In my opinion, ducks make great pets. I just got 4 Pekins for Mother's Day. They are so adorable, and hilarious to watch. I keep them outside in a small pen with a little swimming water during the day and at night they go in with chicks that are close in age.

The only drawback I see with them so far is that they are messy with their water. No big deal.

You're gonna love 'em.