Horde sucks.
Now again, it sucked in Vanilla.
It sucked in The Burning Crusade.
Wrath of the Lich King, it was all over again, they sucked.
Cataclysm brought back the same old story, they all sucked + something extra, they cried and tried to make some funny videos to lessen their suffering.
Now it's Mists of Pandaria and it's enough for me to log once a week to see how bad the Horde is, it's not even worth playing anymore since you hardly ever meet anyone actually trying to find a Horde player who fights back while you try to kill them.
It's been like that since ever and will always be like that, if you know what PVP is about, you will roll Alliance.