You logic seems flawed. You try to give some sort of standard and objective view over the matter, but, in the end it's still your own opinion. And you even contradict yourself. Case in point, for some reason, you deemed Fujitora vs Sabo, a battle that isn't even finished, as Med-Difficulty, which you defined as a battle where both sides are equally threatening, and then classified Sabo 1 tier lower than Fujitora.
Your logic is fundamentally flawed either way. There's no quantifiable way to judge strength in characters, and there's too many variables to say, with certainty, that a character will defeat one or the other. Even the smallest most weakest character can kill the strongest most threatening foe if the circumstance is right. And that has been show in the manga many times, like, for example, Wax being actually useful against Poison. And not to mention that the strength of a character doesn't necessarily mean physical strength, it could mean endurance, intelligence, charm, etc. No one, in their right mind, would say Luffy vs Nami results in Nami's victory, but what if the fight is a navigational obstacle course?
There is no way to define the characters in tiers or the fights in difficulty, and there is no point. It's good to argue about what if's, as in, what could have happened if this character did this differently, or if this characters was here, or if the circumstances were different, but the fact remains that everything is subjective. Trying to appear impartial while assuming your own personal opinion is just not going to work.
