Curved Swords: running r1s, rolling r1s, r2s, all vastly inferior to the insane destructive power of its r1 spam. Even parrying is difficult here despite how easy it should be.
Katana: roll r1, roll r1, roll r1. Just keep doing this with a green blossom up and you're golden. R2s are useful depending on the weapon. As in: if its not the iato, just keep rolling and r1ing with the occasional r1 spam.
Straight swords: a weapon class I actually like due to its nature as both a dexterity scaling class, and a strength scaling class. Until someone grabs a Balder Side Sword. Then its a pure dexterity weapon with higher ar and less weight than most other straight swords at half the point cost. Combat style is quite fluid and rather subject to change based on what you're facing.
Great/Lifehunt Scythe: I'll admit these are fun as all heck to use, but can be a little on the clunky side.
Spears: r1 roll, r1 roll, r1 roll. its almost comical how much this works on people.
Bows: theres really only two choices in this category: Composite bow, and short bow. Combat consists of fire, and then roll. Hitting anything while more than 5ft away is a total crapshoot and damage is pretty underwhelming most of the time. And with no way to properly create distance or the like, it seems rather useless unless the enemy refuses to use a shield or they somehow forget what walls are.
Daggers: Pretty much useless in anything but backstabs. in which case, they'll do pretty alright damage. But even in their own specialized category, they are heavily outclassed by:
Rapiers: A mix between spears and daggers. Trading some range and regular damage for insane critical damage.
Whips: what about them?
Most dex weapons are fast moving and can have some pretty fluid combat for sure, but the main problem is dex weapons are lightweight, which means only one thing: poise stacking. Unlike a str build, which has ridiculous weapon weights, a dex build is able to stack that delicious poise and completely ignore what would be good other parts of its moveset, except insane poise means you can just have r1 fights with people and usually come out on top. I also feel a little pigeon-holed into using katanas on any dex build due to being allowed to go with less poise and still do something.
Fought a bunch of dex builds lately, and they all seem to have the same 3 weapons: Balder Side Sword, Chaos blade, and Gold Tracer. Makes Dex seem a little...lacking in the variety department compared to str which I've seen pretty much every weapon used at one point or another in a serious capacity.