thanks selber for remind them of this.
and remember there are probably even more people who prefer 6. Indeed its mainly the hardcore HA people who prefered 8. And its mainly hardcore pvpers who will go to the effort of posting about pvp in forums. (ex: you are a good cook and dont care about space exploration, you post in cooking forums, not space exploration forums, logical).
So it seems true that an overwhelming majority prefer 6v6. The polls show it, even though they were made in a forum, that probably had more die hard pvp fans per user, than the game itself does.