Which coveted titles are easier to get on the Alliance?
Idk if many players still care about wPvP. You can disable/enable war mode. Blizzard uses phasing and pulls random players across various realms together to try to balance the numbers in the world. To me, wPvP doesn’t really feel the same anymore, compared to when wPvP only involved players from your own realm.
I think the faction barriers are more about instanced content (e.g. arenas, dungeons, raids, etc.).