Right, accurate attack increases your attack level. It will be useful if you hit (a) targets of higher level and/or (b) targets that don't match well with the adversary dodge/parry of your weapon. Using 2-handed weapons it is generally useful when hitting targets that dodge (because adv. dodge isn't good on any 2h weapon). Using Sword+Dagger it is generally more useful when hitting targets that parry (because these weapons got excellent adv. dodge and average to bad adv. parry).
Bleeding can be used with slashing weapons (sword, axe) and triggers every time you do maximum damage.
Bleeding can be used with slashing weapons (sword, axe) and triggers every time you do maximum damage.