BloodRain
Knight of Retribution
Master Sword:
+ Somewhat stronger than a normal blade, 2x in ALttP.
+ 50+ damage on evil beings.
+ Has evil magic repellent.
+ Key to the Sacred Realm.
+ Can't be stolen. (Only a hero of pure heart and strong of body can wield it)
+ Can shoot blade beams.
- Can be depowered. (WW)
- Can lose its Evil Bane-ness if the Earth and Wind sages are... something. (May be the above point)
Keyblade:
+ Leagues above the strength of a normal blade.
+ Highly amps the users physical attributes.
+ Effective against the main treats in the verse. (Heartless, Nobodies, Unversed)
+ Can lock/unlock worlds, lower form is opening any lock or seal.
+ Can't be stolen. (Only the chosen wielder can hold it)
+ Can shoot beams.
+ Amps magic power.
+ Can be charged with magic to increase length and strength.
+ Can be used for transport. (Glider)
+ Can change forms for different effects/powers.
- If the user acts against their heart the Keyblade leaves them.
- Heartless are sometimes drawn to the Keyblade.
^ <<< χ-blade.
Stronger- Offensively the MS is a strong sword thats stronger against evil beings, compared to the Key much more stronger than a sword, amps the users strength and is stronger against the creatures in the KH verse. Offensively the Keyblade, though the MS has the better defensive powers.
Which is more practical/More useful- The Key. Amps your physical and magic skills, open and close any lock/seal and if trained can be used as a Glider. Though if you're not a traveler and and only fight evil foes with magic then maybe the MS.
Best looking- ^That Key against the MS... even with the basic look of the MS its hard to look fearsome with a giant key.. Other Keychains however have a better appearance: Oathkeeper, Oblivion, Guardian Soul, Two Become One, Chaos Ripper, Void Gear, No Name, The Ultima Weapon, Master Xehanort's Keyblade and the χ-blade all have a better appearance than the Master Sword.
In short, which weapon is best- The Keyblade.