The KH has been my easiest campaign to date, except maybe the Romani. The key is simply, combine your armies on the mainland, disband your rhodes units and navy and always always always use your generals to their fullest in early city sieges. I was able to siege and take Korinth without losing a single man by using my generals as wall scalers and city center takers. Granted Antigonos did not attack me within the first 3 turns but by the 4th, I believe, he did, but at that point my Sparte army combined with my Athenai army and I crushed him with a proper hill defense strategy. After that it is just a matter of cleaning up the mess quickly before Makedon can throw another full stack at you. This is not a strategy for people that do not like blitzing though...