This is the issue with comparing two different universes. Link and Cloud would have different advantages in their own respective worlds. You're also saying AC supersedes ffvii. I'm not sure this is fully debatable.
Exactly what would prevent hades from connecting when it's being used 4 consecutive times? Link wouldn't be able to move.
Also how does KOTR not 1 shot most enemies? Iirc with max stats you can one shot all but ruby and emerald weapon