Mudokons are beautifully created, and I love the skin colour and the way they live. I am a massive fan of paramites, I'd give up my cat for one
Ratz are really cool, too. Check out that awesome tail of theirs!
And those bees (sorry guys, I don't know what they're called)
I love their hives, and the honey.
Dammit- I love them all, with the exception of gabbits and fuzzles because their body structure is poor and unbelievable. I loved Oddworld for it's believable animals.
Until gabbits and fuzzles came along, that is.