Out of All the High Tier Killers (Besides Nurse & Spirit) Who is the Best?

You can't tell me that spirits katana or Freddie's glove has the exact same hitbox as legions knife or huntresses axe.

Swing distances and hitboxes aren't variable between killers. At least, they aren't used as one yet and are patched into uniformity when something jostles them out of sync. That's why for example it looks like Freddy lunges a lot more then everyone else; He's an average sized guy essentially slapping you who has to cover the exact same distance as a behemoth swinging a two handed axe visually.