This is me rambling on about how the SSY's cast is possibly the worst I've ever seen. 由 the way, there are major spoilers. (Shin Sekai Yori is Garbage and Here's Why)
The website ranks these characters based on how many "hearts" they receive from members. Here are the 最佳, 返回页首 fifty most loved 日本动漫 characters, on that website: