On my bg, horde (my faction) lose AV way more than they win. However, I have developed a one group strategy that I find very successful. This could be multiboxers, or just a group of 5 well-played, semi-geared pvpers.

Basically, you go to balinda with the rest of the cattle. After the kill, when most people start mewling about iwb/shgy, hang around about 30s, then mount up and head to ib tower, take it back. Then drop out and go recover tower point. Obviously, be adaptive. If the alliance is slow on taking the towers, don't just wait 30s and go. I try to give myself 2:30 from the time I leave balinda to the first tower capping.

If I manage to get both towers back, which is usually a given since only 2-3 on average will stay in the tower, if anyway, there is almost no way a pug can recover. If somebody comes and takes on the the two towers again, just go get it back. A well played group of 5 or so players can hold these two towers almost forver against and disorganized pug, which is almost always what you're facing.

Anyway, it's worked wonders for me. Try it if you're struggling on the horde side (or I imagine it'd work for the alliance side also).