I try to match my strategy to who I use. When I use the romans, I use the checkerboard pattern for those lovely little infantry. With my Seleucids (my favorite faction), or Macedonians, I have one long line of pikes, some good quality archers and medium infantry (like the Thracians or basternae) to back up the middle of my force.

For cav, I use what I can get. I really like the Light Lancers, speed kills, but I have one hammer wing (usually right) that has the bulk of my cavalry. I like the skirmisher cav on the opposite wing to keep the baddies at bay. When we close I send my hammer wing out wide and then crush them against my pikes. But mind, I don't usually do this with the Romans. I don't include enough cav to do so!

Azi