going through the old worlds there is no rule, or if there is its along the lines of 3 of one followed by 3 of the other, which is no good, as by the time the last domination world is "decided" - as in there is no point restarting - there are only VP worlds left to join, and you have to wait a month or two for the next domination.
Frankly
@Coolnite7 I refuse to play VP (i know i told you i was refusing to play any world, and if someone sets up a game even a little better than tw - which wont take much - i wont, untill then inno has me by the gonads). Several other players I know only play VP because there is no alternative when they start, not because they like it. Im yet to encounter someone who actually prefers VP.