Larian Studios Forums Baldur's Gate III Baldur's Gate III - General Reactions and On-hit Effects

I respectfully disagree, Oportunity attack is not a win win. There are enemies that damage you or your weapon if you hit it in melee. Also you only have one opportunity attack. Maybe you prefer to use your AoO against the mage that flees and not against the armored hulk that moves before the mage. Maybe you do not want to make an attack and prefer to use your only reaction in this turn to cast shield or use defensive duelist to defend yourself against an attack instead; or your shield to cover an ally.
There are also feats that allow you to choose to use a spell instead a weapon as an attack of opportunity, like war caster. It would be more useful if you can choose what you want to use depending on the enemy.

It´s one of the reactions you really want to be able to pick your target, unlike absorb elements, feather fall and such.