Well here is the fastest way I could think of to take out a stupid computer.
You take your first three vills to the opponents base and build a house in TC fire. Then TC fire will be distracted and you use your villigers to disrupt/kill his villigers. When the house is about to be destroyed pull back and build another, you'll also get 2 free militia to continue raiding.
When he has no villies left, take down all your vills from your base and kill his TC, wunderbar!