We get to raid your capitol, which owns. We both get to take out your faction leader, who has been intentionally written to be an asshole for the entirety of the expansion just so the Horde no longer feels bad about killing him. Which is the biggest gripe the Alliance has: they can't just have something, some sort of compensation seems to be owed to the Horde whenever the Alliance takes a step forward. Meanwhile the reverse is seems to be untrue whenever the Horde take a step forward.