Definitely talk to animals, not even close. Anybody can learn a foreign language if they need or want to, or even just use Google translate. Compared to talking to animals, you'd hardly learn anything new just by talking to people who speak a different language. It would be fascinating, world-changing, groundbreaking to know what animals are thinking. It would be something akin to first contact. Also I could tell all these damn cats to use the litterboxes. =P