Chinese is the most superior and have meer "blocky" characters. Japanese is the meer technological of them and have meer "cutesy" characters. Korean...they sing pop...I guess....they have "circular" characters.
So, image below is in this order: Korean characters, Japanese characters, and Chinese characters.
I dont know a lot about the languages, only about their appearances. I think the korean and the japaneses eyes are a bit meer open than the of the chinese. And the names are a bit different too. (So far I know) Exp: Chinese: Xiaomeng Li Japanese: Yuri Ishiyama Korean: Park Jae Sang
