If you are winnig every battle without trying, there isnt much point to playing the battles. Leave and play some game where its "balanced"

Every game has good stratageys. Battle for middle earth 2 for instance. Very balanced, S,paper & rock. But rush as dwarves, and youve won. No matter what.

Rise of Nations, on the campaign map (its Medieval Total War with base building and a bad campaign) at the start of every campaign battle, you rush, you win.

Same here, rush your forces, you win.

A fun army as england:
(best units at the time)
General. 4 Units mailed knights
2 units Yeoman Arch 3 Longbows
5 Billmen
5 Dismounted Knigts (3 Fuedal, 2 English)

Its very fun. Sit back and relax, as the Danish come in. It can be flanked, it has no spears, yes. But its fun to play as!