Using the damage formula and calculating under the Antidote Glitch with some variance in natural attack gains, I have compiled a chart which anyone can view and see what weapons do what amount of damage.
Cells in Red mean the weapon can one-shot the enemy. Cells in Yellow mean the weapon can two-shot the enemy. Cells in Blue mean that the weapon cannot at least two-shot the enemy.
https://docs.google.com/spreadsheets/d/1V3ab8nBo4T4Vpz4Bxl9jSmxH_YVF9LqjpnTeAcn1qSo/edit?usp=sharing
As I have posted in the forum, it is my educated deduction that the following weapons are best used in the speedruns based on what category is being run.
Any% (aka Neimy%) Nei: 1 Steel Bar, 1 Ceramic Bar (or 2 Steel Bars for DF, 2 Ceramic Bars for MB) Amy: 2 Ceramic Knives
100% Nei: 2 Steel Bars up to Kueri, then 2 Laser Bars through Neifirst. Anna: 1 Slasher, 1 Laser Slasher Everyone Else: 1 Ceramic Knife, 1 Laser Knife (though on way, Scalpels and Daggers can also be added).
My detailed explanation and theories are explained in the following Forum post:
