After all multipliers and perks are applied, which of the two is stronger?.

Daedric Sword > Bound Sword

Daedric Bow > Bound Bow

Daedric can be smithed and enchanted thus its stronger.

Going on pure damage the bound weapons are weaker but with conjugation leveled up and duel wielding a bound spell you can really do some damage to whatever your attacking.
The thing I like most about the bound weapons is they don't weigh anything and when your done killing they just vanish until you need them again.

Real>Fake / simple logic

That and since the damage of the Bound Sword is entirely dependent upon your Conjuration score, the damage can vary widely from user to user.

Daedric weapons can be Smithed using the various exploits (along with Perks) to be upwards of three times as potent as a Bound Weapon.

Without smithing or enchanting, Bound Bow > Daedric Bow. But Daedric Sword > Bound Sword. Bound Sword is a lower level spell.

But with good enough smithing, Iron Sword > Bound Sword and Longbow > Bound Bow

Wrong its based on your weapon skill.