Played a 2,000 pt Key Objective scenario with Jerusalem last night. We were using a tweak we like where cavalry units don't get the charge benefits (beyond the normal Pow bonus) for charging in difficult terrain (defined as "MC penalizing" terrain), and the map was 3D, so I knew this one was going to be (yeah I'm really gonna say it), an uphill fight for me.
I saw this when you first posted it, and liked the concept. I saw it now and I really like the concept. Cavalry is kind of limited in the sense that they really only work best in open terrain, at which point they were the awesome sauce on the battlefield. Given that most of the terrain is going to be open, that means cavalry is dispropertionally favored.