I would rather be able to communicate with animals than be fluent in all languages.
Animals are the "true wonders" of nature. Contrary to many peoples' beliefs, they possess as much emotions as humans; perhaps even more. The ability to understand their thoughts and lives is a much greater power to have than learning 100 languages. This is simply because it would be practically impossible to use all these languages in a lifetime. However, communication with animals would broaden our thought process and strengthen our bond with nature.