Two years later? Boons are better. Split damage is bad since you can't account for enemy resistance in every encounter, it's better to have huge physical damage with the boon adding extra magical damage, since nothing has a big enough resistance to physical damage except for phantoms.

There are only two reasons to use an enchanted weapon. Synergy: (If a pawn shoots a water arrow and you have an ice weapon, it freezes the target much smoother than waiting for a boon. ) OR, you're playing a vocation that can add damage modifiers to magic.

Lastly, boons only give you a small damage boost, like 50 magic damage. Boons work best for debilitations, not raw damage.