I sided with Mr House, with a side mission helping the Followers clean up Freeside. I love that the game doesn't force me to choose whatever side the developers happen to decide is the good guys, but lets me decide who I want to help based on my own ideals. While Mr House may be a bit megalomanic, he does have human progress at his heart, which will eventually allow the expansion of New Vegas to improve everybody's life, and not merely the political goals of the NCR or the legion. I do wonder which is supposed to be the canon ending?
In any case, handing General Oliver our Declaration of Independence was really satisfying, especially when all the Veteran Rangers got vaporised by Securiton lasers.
