Chinese vs. Japanese

Okay so. I've planned to learn an Asian language, but I'm stuck between 2.

These are Chinese(mandarin) and Japanese. I know its sorta biased, but can you guys give me an indication of which I should learn?

I want to go to either country and teach english as a second language, but which would be more "opportunistic?"

>>17
Ironically, the Chinese themselves manage to know all the characters perfectly.
Chinese characters are a very complicated system that can only be good remembered if Chinese (or a very similar language) is your first language; even the Japanese who have deeply incorporated kanji into their culture normally know twice as less as Chinese do, and the Koreans completely abolished the usage of hanja since nobody felt like using it.