WSG - (A)45% / (H)55%
AB - (A)44% / (H)56%
AV - (A)51% / (H)49%
EotS - (A)42% / (H)58%
SotA - (A)46% / (H)54%
IoC - (A)44% / (H)56%
TP - (A)47% / (H)53%
BoG - (A)49% / (H)51%
So no, the disparity is in the games you played, not in the battleground itself. Now looking at those numbers, some might say that it shows a Horde bias. Others might say it's due to PvP players going Horde. Even more others may say it has to do with racial abilities. Since things haven't changed, it's obvious that Blizzard either keeps AV purposely imbalanced to give Alliance something they can win, or there is no problem besides the players and their strategies.
Personally, I'm not taking a side because I don't PvP. No matter when I do it, on Alliance or Horde, it seems like I hover around the 50 / 50 mark, so that's fine with me.
Hmm, on my prot pally I did 25 games, won 12 (EU Horde side). What I'd do is run right to the top, get and guard the gy, let the rest take bunkers. As soon as gy and 2 bunkers were down, I'd tank Vann and win.
In case we didn't win, there were too many defenders in Dun Baldar or fellow co-Horders were just plain retarded (taking SH gy... yea, good idea).
But the bottom line is it was 50:50 for me.
-Alliance appear to have a slightly faster route to Frostwolf than Horde do to Dun Baldar.
-NPCs in Horde towers cannot shoot cappers due to tower layout (nor can Horde easily target them from outside, or even while elsewhere in the tower), while every Alliance bunker has 1 or more NPCs that need to be killed/cc'd in order to assault it, and open lines of sight to the flag.
-Ally base defense (the bridge) is superior to the Horde chokepoints at Frostwolf (which can be bypassed without too much trouble); player knockback was never intended when the BG was designed and alliance had a bridge. Also, if I remember right, characters were originally auto-dismounted when riding through the building right before FW gates, which slowed them down a little more.
-Frostwolf NPCs can be easily avoided en-route to Relief Hut and FW Towers. Dun Baldar is full of NPCs that are almost impossible to avoid aggroing, located near key points, the Aid Station in particular.
-DB Bunker archers can range on the immediate vicinity of the Aid Station. FW Tower archers cannot reach the Relief Hut area.
Don't get me wrong, I loved AV both in its old and new incarnations, but it was easily the most imbalanced BG before MoP. (From what I've read on here and elsewhere, it sounds like Silvershard has claimed that title now in favor of the Horde, though.)
"Reason is not automatic. Those who deny it cannot be conquered by it." - Ayn Rand
IWB only requires taking out one, if I'm remembering correctly. I know I used to sap and cap it on my rogue before hearthing back to recap the FW towers and RH, back when I was working on Battlemaster. (Maybe I was being clever and sapping one and blinding the other?)
If both sides rush, the Alliance is 10s ahead and ready to kill the boss with 2 towers down. Horde can only win a rush if Alliance fails.
If Horde defends Galva, it´s hard to get back in time in order to retap all four towers. Alliance can even just block the garnison and delay this fight to gain time for capping the towers.
The best way to win as Horde is to camp the bottleneck near Iceblood tower. Send some stealth classes to capture bunkers or just make trouble. Send 1 healer and 2 DDs to finish any Alli who made it through the barricade. But this requires a coordinated group. Hard to do without Preform AV-Enabler.
I geared 2 alliance toons in full Malevolent this previous AV weekend because the win ratio for me was about 11-1 in my favor. The two notable exceptions that we lost? 10 Horde defended the final boss and the clueless Alliance couldn't dislodge them. The old Open Raid strategy of letting the two mid-towers burn then filling in the choke point at IBT and farming for resources and honor kills. That was it. There was one maybe 2 rushes that Horde actually won.
The biggest problem for this BG is it's possible to burn final bosses with 2 towers up already. When tanks have 1 mil HP by the end of the expansion you'll see victories with 3 possibly 4 towers up. They never scale BG bosses once an expansion has started.
I stated numerous times to my groups, I don't know why Horde don't blacklist this map and refuse to play. I know when I gear my Horde there's no way in hell I'm going to leave this map on the random list. The map used to be just as imbalanced the other direction when the Horde cave was behind TP.