For me, Korean is definitely the easiest language. It only takes you about a day to memorize the Korean alphabet (hangul) However, a lot of Korean is based on Chinese characters, so you could build a slight knowledge from Korean on Chinese :DD ~ I was an exchange student in china for 2 weeks, and could hardly pick up any Chinese because the tone of your voice has to change and there is so many unfamiliar sounds you have to make.~ Don't get me wrong, I love the Chinese language & I want to go back to China :DD ~ I've been learning Korean for just over 1 year now & I am enjoying it so much XDD ~ Japanese is quite hard too because there are 2 different alphabets & on top of that, you have to remember quite a large amount of Chinese looking symbols called 'Kanji' 0.0 so many things to remember :DD ~ I'm 15 years old and still at school, so learning Korean was definitely the less time consuming language for me & I don't regret learning it XDD ~ But, if you're passionate about another language, then go for that language as you learn LOADS more if you're passionate about a language (': I hope this helps! & Good luck! ♥