There seems to have been a good, unspoken agreement between alliance and horde on my server (Ragnaros-EU) while levelling - don't attack me and I won't attack you.
Even if its like 8v1, people have not been ganking each other while questing (except for the first few hours in hyjal), even if competing for quest mobs or objects. It has made it a hell of a lot easier to level and has probably saved everyone hours of time that would otherwise be spent corpse running or nuking something that is not going to give you xp.
I think I have been attacked twice on my way to almost 84, once by a hunter (who died /lol) and once by a paldin who just HoJ'd me then kept on running. Not counting the druid who popped starfall on some mobs when we were about 30 yards away =P.
I was wondering if any other servers have had similar situation, or if it is full-on pvp war?