To be honest, i will tell you that i am learning both Japanese and Chinese. For my experience, Chinese is easier than Japanese but i still like Japanese a little more. But that is what you have to ask yourself, which one is your favorite because if you dont really like it, i can not go long with it. I learn Japanese because I like their culture and people here. I choose Chinese as the second choice because I want top learn more about bitcoin mining in China. My choice has it own reason, that is the reason why I still can follow it until now.