True, AI it's clearly more aggressive on the battlefield (had tough time yesterday against Scots in some woods), but clearly the same in sally battles.

AI just sits in front of the gates, out of towers range, and waits as I deploy all my cav behind its lines.

At the beginning I used wide circling maneuvers to place myself behind, fearing a fast reaction, now I just walk happily by AI's flank. In RTW (and even MTW), placing troops behind the AI made those waver (or at least quite worried), now it's like they never even notice all the heavy cav getting ready to send them to hell... 40 yards behind.

AI reacts at a point, it's true: after losing men and in an unbalanced battle (in my favor) during a missile duel, it decides to retreat.