I did a lot of AV this weekend on the alliance side (40-50k honor). I usually rushed ahead to FW west tower. I would cap it and defend until it was destroyed. I was successful well over 90% of the time. Holding off 1 to 5 people was fairly easily. Holding off more than 5 unless it was multiple mages AE'ing was a bit more of a challenge, but was certainly doable. However, if it looked ugly, I would often drop 4x fire elemental, pop heroism, and just start chain casting LHW until the fire elementals had softened them up enough to 4x frost shock kill individual targets. This same tactic was able to wipe the horde when they were on Van and had him down to about 20% health.

If I got cutoff or stopped on my way to FW towers, I would divert to Galv or another tower. In the rare instance of the horde not defending Galv, I was able to kill him with just my 5 guys fairly easily. 3 staggered tremor totems completely negates his fear and with 4 shaman, I had plenty of dps and healing to kill him.

In one match, the horde were pretty much dominating alliance (ok, more than one match, but on this particular match...) taking all of the GYs. My team rezzed back at the GY near the bridge just as several other alliance were rezzing. Some dranei priest decided to heal my group and we went on a 5 to 10 minute long nuke fest as waves of horde tried to break through that ravine just before the bridge. I ran completely out of mana 3 times this was using my mana pots everytime they refreshed. I was able to drink twice refilling my mana as the horde ran back from their nearest GY. That priest did an amazing job healing my team as we proceeded to wrack up 150 kills holding them at the bridge. At one point, all I could see was blizzard and hellfire raining from all directions. I was very luck with the timing of the horde surges, because they happened to coincide with my EM/NS cooldowns. Just as they were about to break through, my cooldowns would refresh and I was able to unleash the chain lightning into an extremely target rich environment. Yes, we lost the match, but it was a total blast fighting non-stop for so long. Obviously this isn't really a strategy, but I felt compelled to share this story