You forgot the most important things which is that AI is way more intelligent on tactician mode and that is why I will only play on tactician.
Ehh...AI has different priorities on tactician. But if you know what the AI prioritizes you can use that against it. Have your lowest AC character have the shield spell which can propel it to the highest AC, etc. AI is still AI, on tactician the main thing to worry about is the extra power it has like the cheesy explosive shots those goblins had...when tactician goes wrong it will probably be because of the extra brute force like that.
