I might like to be a tiger, because I like tigers and that's my animal from the Chinese Zodiac. Of course, seeing as they're endangered and keep getting cut up by poachers for Chinese Holistic medicine, that might not be so cool. Maybe just a normal domestic house cat, then, because they are also cool (even though I'm allergic), and they get people to take care of them--and according to Animal Planet, they are the most "extreme" species of cat on the face of the planet. And they are certainly not endangered.
I really like rodents, but I don't think I'd like to be one, unless I was maybe a
pet mouse or rat, because then I probably wouldn't get eaten. The fact that I'd only live about a year or two would kind of suck, though. Maybe a Capibera wouldn't be too bad, because they're huge and they can swim.
Anyway, I think a house cat is my final answer. The kind that never does any work and makes friends with the local mice.
EDIT: Or maybe some kind of bird, because I'd love to be able to fly, or a dolphin, because I love to swim. Indecisive, much? Oh, wait, seagull! Then I could give people crap all the time! Haha.
*NEEDS SLEEP*