I'm bored, so I decided to do this.
Who is the most powerful? Remember it's not who you like the most or prefer, it's who is stronger.
[spoiler=List of rules]-No composite forms.
-Links will be evaluated at their maximum potential.
-No usage of the full Triforce.
-I will be using Adult Link from before he was sent back in time.
-Young Link from Majora's Mask will be used rather than Ocarina of Time.
-NES Link has access to all of his spells and items from both games.
-SNES Link will have access to all items prior to him putting the Master Sword back. This Link does not have access to Oracle or Link's Awakening items.
-Oracle Link will have access to all items from A Link to the Past and Oracle of Ages/Oracle of Seasons excluding the Master Sword. Depending on which Oracle game is being used he will have access to those respective items. Oracle Link will be allowed linked game items from either Oracle of Seasons or Oracle of Ages depending on which is being used.
-Link's Awakening Link will have access to all items from before the waking of the Wind Fish, but not from his past adventures in A Link to the Past, Oracle of Ages, and Oracle of Seasons.
-Wind Waker Link may have access to all items from Phantom Hourglass and Wind Waker as he was shown to have carried back the Phantom Hourglass back to his world. It's up to you whether or not these two games should be separated and if he is able to use the items gained from the World of the Ocean King.
-Spirit Tracks is pretty simple, just any item he got in the game is allowed. This also applies to A Link Between Worlds, Four Swords, Four Swords Adventures, Twilight Princess, and Skyward Sword.
-Minish Cap Link will be evaluated from before Ezlo left, but I doubt his shrinking powers would add to anything, but his ability to solve puzzles.