If you had to learn any language (besides Spanish), what would it be?
Mine would be German.
16 Answers
I'd learn Italian
But I don't think it's possible because I'm learning 3 new languages : English, French & Spanish, so I don't think I can add a new one now.
I plan to make Korean my next 'stop' on the language passage for me: it is as important in NYC as is Spanish.
Polish! I actually bought a small "Polish for beginners" book for myself this Christmas.
And then maybe Portuguese? Time will show.
i would like to learn Mandarin and French.
yes, german would be up there! I might have another crack at portuguese or italian though...
French, I hear it every day yet I can't speak a word of it.
After that Portuguese, because it sounds beautiful and it's similar enough to Spanish that I could learn it.
I want to learn Euskera (Spanish Basque) particularly because it is such an enigma of a language.
If you had to learn any language
The question (as stated) suggest that you wouldn't have a choice. "If you were/wanted to learn ..." would be better.
Leaving aside that objection (i.e. assuming you mean "If you were o learn ..."), there are a number of factors that could affect your choice. One (obvious) approach would be to choose a language that is similar/related to those that you already know; to simplify the learning process. Another would be to choose a language that is completely unrelated to any language that you know because doing so would give you a broader understanding of languages (in general) and their differences. Another would be to choose a language on the basis of the number of native speakers (because of the likelihood of being able to use it). Another would be to choose a language on the basis of its political/economic importance (its potential commercial value to you). Another would be on the basis of the extent of its literature). Another might be, simply, for its "novelty" value (some Amazonian language spoken by only a few hundred people or an American Indian language that has all but died out).
Russian or Japanese.
it would be great if I could learn russian :p
Probably French after that Portuguese or Italian 
I think that being forced to learn anything is not a good idea at all !!! A good teacher at school can make learning interesting and exciting and usually young children just love learning when they are 5 years of age it is such a shame that they lose that love by the time they are 11 years or younger in some cases!
A genuine motivation is essential ! People need to really want to learn something or at least enjoy learning whatever they are learning for learning to be effective! This goes as much for adults as children!!!
It makes me very sad when I hear of children having to learn things because their parents are living their dreams vicariously through their kids ...what a terrible shame! Such experiences are a real killer for motivation Observe who is most enthusiastic about the learning process and you might just see who is pushing the child's buttons: themselves or their parents!
Portuguese, for nostalgic reasons.
I would like it to be Italian - I love the sound of it.
If you want a language to learn and you are a fluent English speaker try Danish. The garmmar - especially verbs are very very easy to learn.
German and Arabic ,,,
German, because I work for a German company and my family heritage is mostly German.
