nss, I think that you should definitely take Latin. As far as for French and Spanish, I won't say anything about them because I know that some people will bash me for telling you to take French because they find Spanish more usefull. This is a little note that I posted once about most used and most spoken languages, so you can read it to and get an idea , if you are looking for languages that will be usefull to you. But if you just want to learn a language just because you want to know a new one and have the passion, it won't matter whether you choose Spanish or French because sooner or Later, you will learn the other one to fulfill your desire.
here is my post and there is no absolute truth behind it so potential bashers are welcome to add more details and correct any mistake
Here you go.
Mandarin? China , yes China has a large population but mandarin is mainly speak in China, and other countries that have people form Chinese origin. Still even in China some people don't speak mandarin. Spanish?
Well Spanish is only spoken in South America, Spain for Europe, US and other caribbean islands. I am sure that they speak it in other places too.
Arabic, well it's the same for the above but French?
French is spoken the Americas: in several caribbean islands, in the US by some people, New orleans, Vermont and some latin american countries. In Europe : France, Romania, ( yes Romania is an exceptional francophone country with a high interest in French), Luxembourg, Belgic,Corse,Monaco, and other European countries.
Africa: most of the countries on the African continent. Asia: Cambodgia, Vietnam, Thailand and other ASian countries have strong French presence.
In Addition we have rhe sub saharan contries or the North African ones: Lebanon, Tunisia, Morocco, and so one plus some of the islands in the indian ocean: Maurice, Seychelles, Madagascar, Solomon and so one. Oh I forgot the French Polynesia. French is Basicaly widely spoken on every continent, every region of the world. Reunion islands
Caribbean: Martinique, Guadeloupe, French Guyana, Haiti, Sainte Croix
English: well we all know that English is spoken almost every wehre. So to answer your question. The most used languages I can come up are English then French. you can find the rest. But for the one that is spoken by most people you can say mandarin but it does not mean that it is the most used language mainly in one language since it's only used in one part of the world and by some immigrants who are from Chinese origin
Now you should choose a language that is in demand like Mandarin, Farsi, Arabic, Russia if you looking for one that will make you competitive. All languages are useful and important. If your language is in demand but few people speak it, you will have a great advantage. People tend to forget Portuguese when they are choosing language , I jsut lost a job because I dod not speak Portuguese
