I think the 101 speed more than makes up for the higher stab damage, no?
Although my main point was to point out how ridiculous the cut damage is. A big ass monster axe does the same damage as a medium sized sword and less than a greatsword? Lolwut?
Also:
Yeah, but that isn't just the Katana, that's all 2 handed swords. For example the Sword of War has 40 Cut. Surely a weapon of Weight 3.2 and Length 162, should do more Cut damage than a weapon with Weight 3 and Length 121.
In general I'd say a halberd/Glaive/Cutting polearm should do more damage than a sword, but this just doesn't seem to be the case in C-rpg.
And in regards to the speed, I've said this before, I'd happily trade in the speed for some decent Thrust damage. I'd much prefer the Katana to be thought of as a Viable weapon, than a cheap spammy one