I know most people want Cinder's head on a pike so I don't expect this to be a popular thread, but humor me. Is she really evil? If I think back on everything that she's done I can literally count the people that she's killed on one hand. I'm not saying that she's a good person by any stretch of the imagination, but she doesn't seem to fit the typical villain mold & there are several reasons for this:
1). When Cinder infiltrates the Cross Continental Transit Tower in Volume II, she doesn't kill any of the guards even though it may have been in her best interest to do so. She definitely makes their day a lot worse but they live.
2). Cinder is in control of the fights during the Vytal Festival & yet there is a surprising lack of carnage. Yang was eliminated from the tournament with little more than a wounded ego while Mercury wasn't even injured to begin. The only casualty of the Vytal Festival — was a robot.
3). In Volume IV, Cinder is being written very sympathetically, which is not what someone would expect from a villain character. After we discovered Torchwick was little more than hired help at the end of Volume I — his writing remained consistent because that's who his character always was. He never acted any different than he should. Cinder, on the other hand, has a lot to hide it seems & she is being played as someone who is easy to empathize with. Her motives are still unclear but she is a far cry from the smirking and confident villain of Volumes II & III.
4). This is all conjecture of course, but there is another interesting point. When Pyrrha is killed at the end of Volume III, Cinder — for lack of a better word — disintegrates her. Everything but her crown. This may simply be an artistic choice from Rooster Teeth but if the rest of her armor disintegrated — along with her body — why would the crown remain?
In conclusion, I don't think Cinder is an evil person. I don't think she's a good person either but at this point we know so little about her it's hard to draw a final conclusion. I would classify her as an anti-hero — someone who does bad things for what they believe is a good cause. I could be 1000% wrong about this —
— but if I am right, I totally called it and you should build a statue in my honor. Something cool like me on a horse — no! A motorcycle!