I voted for option 1 which is probably the only realistic way we'll get World Government. I don't believe that if it happens, it'll happen overnight, there are so many problems that must be surmounted first. Ideally it would be a secular, egalitarian, meritocratic, democratic, fairly liberal and tolerant (though not to some PC extreme), English speaking institution. How you'd achieve that, for instance down playing religion, or class/caste systems, getting non-English speakers to accept/learn English is beyond me, but I believe that moving towards a world of more countries and almost as many languages as there are people to speak them is a recipe for disaster. Look at the difficulties we're facing in confronting environmental problems or the 'credit crunch' Hopefully a world government would be better placed to tackle them.