I think it depends what your goals are, and where you are planning to travel. French and Spanish are certainly spoken in many more countries than Italian and German. If you learn French, that opens up much of Africa and the Indian Ocean to you... and if you learn Spanish, you can travel throughout almost all of Latin America and the Caribbean. If you decide to learn Spansh, then I'm certainly happy to help! :)

Versatility? Spanish Cuisine? Italian Love? French Music/beer/engineering? German I would personally go with spanish just because of its popularity.

Maybe Chinese?haha~It's hard but intersting.如果你愿意的话我可以帮助你。（translation:If you want to learn it I can help you）