Every language, as if people would believe you if you said you could talk to animals. Its not as if they'd have anything to say anyway

Oh I dare bet animals would have a great deal to say,(and likely far more sense at times too than humans), which is why I would choose that for me, to be able to talk to animals.
That would be a real gift to be able to do in my opinion.
Whereas we can if we really desire to, set out to learn other languages anyway.

Talk to animals.

speak every language fluently

I don't need to speak to some dumb animal

then why did you choose the languages

so I could speak to intelligent animals

Speak every language in the world. You'd be invaluable as there are plenty of dying languages. Would you be able to speak lost languages too? Or only languages that are currently spoken in the world just now? You'd be able to communicate with uncontacted peoples (not that they necessarily want to be disturbed) and you could go anywhere in the world and never feel lost... I'd love that.

be able to speak every language fluently

Talk to and understand animals .

Talk every language in the world.. It would be amazing!!

I can't imagine enjoying talking to animals all that much

Understand animals. http://content.internetvideoarchive..../001858_21.jpg