What if Lenin had never been born?

What exactly has Lenin's impact been on history, politics and economics? Was he an evil genius, an inspired political visionary, a failed experimenter in social science, or none of the above? Any thoughts? I think that given WWI, WWII is inevitable. I think just how "bad" Lenin was is debatable -- basically, he was just another nineteenth century anarchist who saw violence as the only means to significant political change. So, the problem was that WWI gave the opportunity to people with anarchist leanings to really go to town in terms of using violence on a very large scale, and getting plenty of grass roots supporters, because of the degree of social brutalization. It's significant, I think, that the most brutal of them all -- Mao Zedong -- actually achieved a stable system in China that represents an improvement on any government there in centuries. So, I'm inclined to be a little less judgmental than some about Lenin's violence.