I was running around in AV with my alt tonight, and found a neat little place to stand at if you're defending as Alliance (or maybe attacking as Horde).
Step 1. Go here! If you've ever played AV you should be able to see where I am.
Step 2. Wallclimb here. Purple/Pink is where you stand/land! Red is how to jump! (At least for people who sucks at wallclimbing, like me).
Step 3. Purple/Pink is where to land! Red is how to jump! Blue is where you have to JUMP in order to reach the Purple/Pink spot. Only with 60% mount, otherwise you'll have to jump earlier.
Step 4. Enjoy your new lookout spot, it's great as the "walls" on the pillar gives you protection from other people and you decide wether to expose yourself or not.
That's all .
Too bad I'm not a caster .