Danganronpa Character Tier List
The rankings are basically based on who are the top characters, who are the next best characters after that, and so on. Even "C Tier" characters are characters I like, just less so for whatever reason. When you get into the D's and lower, these are characters I have more legitimate issues with or do not care for.
There's no spoilers written in this list, but since this is a series about a killing game, where only a few characters survive each game, the ranking may indicate how long a character lasts, how "involved" they are in the killing game, and stuff like that.