Thanks everyone for the suggestions. I tried a numerous number of strategies with varied results. My first attempt at defending the Horde towers was met with failure. The Alliance liked to put 5+ people in each and by the time I made it to the top, I had lost one or two priests due to pathing. In the end my favorite strategy was to hide my team in one of our towers and prevent them from capping.

My favorite game occurred while doing the AV trinket quest. I collected quest item, and since it was to late to try and help the offence, I ran to Tower Point and tried to defend it. En route I lost all three of my slaves (due to pathing) and only got one to the flag where it was defended by a lone Paladin. I throw him off the tower with a mind control and proceed to cap the tower with >30 seconds to it burning. After which I book it on over to Drek, arriving just in time to fear bomb their entire raid. They kill my team and we win with Drek having 500k life. Which is how much HP my team had.