I think battlegrounds should balance the levels of players. I can think of 2 MMORPGs that are already doing this and I feel like wow should do something similar. I understand that in wow it would be hard to make level 10 players and level 89 players play in the same bracket. But for brackets such as 85-89, all the players should be temporarily leveled to 89. Pvp isn't enjoyable when you can't do much against someone who is level 89 just because I'm 86 or so.