NCR: Good at heart; eager to take the moral high ground but arrogant and sometimes careless in their endeavor to do good. Their eagerness to improve the remnants of mankind sometimes causes the suffering if innocent people who serve as obstacles to their expansion.
Legion: Evil, plain and simple - I killed Caeser and every other Legion member I came across. Witnessing the aftermath at Nipton was enough to clarify my perspective enough that I feel confident in my belief that they should all be destroyed for the betterment of mankind.
Brotherhood of Steel: Good at heart; strongly clinging to the belief that by hoarding technology they can control it in such a way as to prevent history from repeating itself. They believe technology was misused which resulted in the near destruction of mankind. As a result, they wish to control it themselves, no matter the cost. They don't want to kill innocent people but won't let that get in the way of procuring potentially destructive technology in the hands of outsiders.
The Great Khaans: Good at heart, but wrecklace and shortsighted by nature; unable to move beyond their hate toward NCR and their hunger for justice. While none can contest a great tragety was committed against them by NCR, the Great Khaan's are literally unable to let go of the past and look to a brighter future. They also serve as a foundation for the Fiends, a drug addicted group of murderers and rapists. In short, without the Great Khaans, the Fiends will eventually die out. Thus, I reluctantly destroyed the Great Khaan camp with two motivations in mind: 1) to prevent a lot more deaths in a suicidal attack on NCR at the dam, and 2) to ensure a safer future by eliminating the root cause of people joining the Fiends.
The Strip: A collection of businesses, the largest of which known as the "three families." The white mask society was dealt with and the cannibals killed. Also, the Gemorrah family plot was destroyed with the death of some of its members. Benny from Tops was killed as collateral damage when nuking Caeser in his tent. Thus, stability has been restored in the Tops casino. In a nutshell, though largely corrupt and misguided, the three families have been largely neutralized and no longer pose a serious threat to the advancement of mankind. Las Vegas, though the wealthiest and most reminiscent of a pre-war city, is only a very small part of a much larger collective which represents the current state of mankind. If kept in check, the Strip will inevitably grow through business and capitalism. While corruption will always be a nuscence requiring repeated intervention, progress is still progress; such is growth.
Mr. House: Well intentioned, but cold at heart; confident in his belief that his way is the best way to ensure the continued success, growth, and evolution of mankind. He believes he can facilitate the revival of mankind and oversee its evolution to the stars and beyond. Unfortunately, despite the fact that I believe he is capable of making these visions for the future a reality, his methods are extremely disturbing to me. He wants me to destroy everyone in the Brotherhood of Steal and arrange for NCR's military to be driven back to such an extent that hundreds or even thousands of good people will be killed.
If anyone would like to correct me or add to any of the above, please feel free to do so. I'm hoping this thread will turn into an intelligent discussion about the moral philosophy surrounding these issues. The problem I am having is in choosing the 'lesser evil.' Is it justifiable to commit a great and terrible act of mass murder to ensure a bright future for people who aren't even alive yet? If the answer is yes, then Mr. House may be the person to side with. Or should the real issue be the here and now, not the what may or may not exist in the future? However flawed, don't those currently struggling to find their way deserve a chance, however remote and unlikely it may seem that they might succeed? Is it good enough to have good intentions and be good at heart? If so, perhaps the 'lesser evil' would be to destroy Mr. House, thereby giving the NCR and the Brotherhood of Steel a fair chance at their own evolution toward a better and brighter future for mankind. I literally can't decide. My first instinct was to disconnect Mr. House, but let him continue to live, but upon doing so I lost karma. This caused me to pause because I generally don't do anything in the game which results in a loss of karma. I tried killing him instead, figuring it was a more merciful solution (since he asked to die once I severed his control over the robots), but I still lost karma. The loss of karma isn't my main concern, though. I'm really just trying to figure out what is the best course of action. I'm very much interested in reading some thoughts from members of this community.