I strongly disagree with the OP. I have found numerous situations in which morale, terrain, leader abilities and technology allow my 10k army to defeat a 15k stack. I too have 'hundreds' of battles that I have watched. The fight is close, and one I try to avoid at all costs, but generally parts of the lesser army start fleeing earlier than mine, and that is enough to turn the battle in my favor. Additionally, I have had the opposite happen, where a leader died and I didn't notice, a 18k army crossed a river and was destroyed by a well led 14k stack. Technology was similar in this case, unfortunately i wasn't paying attention to the pause/unpause popups and the army crossed over when I should have stopped them.