Is anyone else having an issue where equipping a warrior with a spear causes them to stop triggering attacks of opportunity? It doesn't happen all the time but I've had multiple mobs run right past my spear wielding warrior with no trigger.
Maybe this is deliberate? A spear gives you some crazy utility, being able to attack further means you have to use less AP to move, and Whirlwing with a spear is CRAZY it hits so many enemies!