Hello.
When you join new BG, try to run to oposite faction starting point, there should be some AFKer. You can kill that AFKer, and then he spawns at their graveyard, kill him again and again and again. After 50 kills it is worthless. This doesnt works much in AV, due to hard-to-get starting points.
So you get all Honor Points for winning/loosing your BG + great ammount of Honor Points for killing this lousy AFKer