In my opinion English is going to be the most important one for a while, and Spanish is already one of the most important. I think Spanish is going to have much more importance in the next years

Spanish because I work in kitchens where there are almost always Spanish speaking cooks. However, I am more passionate about learning German.

Here in the USA, Spanish is definitely considered a second language among the people.  In some states like California, New Mexico, Arizona, etc they have laws that protect and promote the Spanish language.  Although Chinese is starting to become well received in many parts of Asian and Europe.

Spanish because in my state there are a lot of Spanish speakers.

I think Chinese because China has had a great economic development the last years, maybe many countries make business with Chinese businessmen.