It seems to me that the people against it all seem like the PVP crowd.
IMO much of this game has suffered due to faction balance. Story lines that make no sense (the most recent being the SoO) is one of the most obvious ways.
I would like to see this faction stuff just go away, it is just plain stupid the way Blizz does it. What is the point of faction wars? Do you ever have any real victories, losses, gain or loose ground. Nope all because of faction balance.
The only reason the factions are still here is for PVP. I hate pvp so I hate the idea of factions.