In 1 vs 1 rm always build your military as close to the enemy as possible without him knowing this way you keep the fight out of your town because he has to destroy the buildings by his base.
when an enemy builds a castle by your base dont suicide tons of archers and swordsmen to try to whipe it out instead get about 5 battering rams and attack the castle with the rams and use your archers and swordsmen to protect the rams while they destroy the castle.
you should also always bring rams when you go to attack the enemy base send in your horse archers first kill the villagers then bring in your whole force and the rams using the rams to destroy buildings and the swordsmen and archers to kill opposing enemy forces who try to stop your rams.