About my vote, I voted for Kerensky, though I would not suggest that it was an actual crime. One could view it as being almost criminal in a moral sense, though I wouldn't say it is near it in a legal sense.
Amaris was mad, Kerensky was of clear mind. Amaris took actions that would lead to the deaths of many. Kerensky's decisions would create a situation that would allow others to take action that would lead to countless deaths. Kerensky could have taken action, much like Amaris did, but his actions would have prevented deaths.
Kerensky could have worked with one or more houses to create a coalition, in trade for material support. If anyone had a chance to maintain the tech level of the I.S. of the 1st SL era it was Kerensky. If he maintained the tech level then his forces would have had the tech advantage over the houses. Working with a few houses he would have maintained his force. He could have made some kind of deals to keep a few houses from attacking others, such as they supply the SLDF with materials and the SLDF will defend their worlds from attack if that house does not aggress another. The other houses would not want to mess with another house and the SLDF, and since the coalition houses would not attack, then the other houses would not have a good reason to aggress them. Who really would have wanted the weight of the SLDF and another house's force falling upon them for a small gain of a handful of worlds?
Instead of seeing the possibilities and acting to protect the I.S. as he supposedly was trying to do, he decided to bail out and let the I.S. fall into chaos. Even if the SLDF fell apart because people gave up, or went back to their homes to fight for their house, or went Merc, what would it have mattered? How much more damage could a few hundred more mechs have done if they were scattered throughout the I.S. fighting against each other? If anything they would have canceled each other out. The remaining SLDF could have played a major role in preventing many deaths by just being present. Whatever WOB did to the I.S., the SLDF could have done even more damage since it would have been focused against one or two houses that decided to piss them off by aggressing.
You don't save the house by letting it burn to the ground while you go camping in another country. You save the house by putting out the fire. Also, you might need to put out little fires here and there, but as much trouble as that may be, it would be worse to allow it to become a massive fire that then needs to be put out. Kerensky saw the fire hazard, he saw the sparks, the fuel, and the pyros starting the blazes, and he turned around and walked away. He comforted himself by suggesting that what he was doing was not abandoning his cause, but that he was saving it by leaving it. If he stayed and died fighting in what may have been a futile battle, at least he would have gone out without tarnishing his name and what he believed in. He would have done more for his cause had he gone and WOB'ed one or more houses in a preemptive strike to make an example out of those that would try to take over the I.S. through force. At the very least he would have proven he didn't lose his spine. It would have costed lives, but it would have saved countless more by ending the wars that would begin if he left.